Question

Here is the story.

the question is in the image

I saw my first tree today. Oh, I've seen the plastic trees; practically every street has a few of them.
The O'Brien home was one of the few examples of old-style wooden structures that hadn't been demolished in Boston's urban-renewal campaign at the turn of the century.
The home itself was unimpressive. It had none of the marble gloss or steely sheen of modern buildings but was rather a dull white color, with the paint peeling in places.
My mind was on the tree, and I thought the inside tour would never end, but soon we were walking through a doorway hidden in one of the bookshelves and into the back yard. The yard was big — at least 10 by 20 feet — and I was surprised to find real grass growing on the sides of the concrete walkway built for tourists. The grass didn't distract me for long, however, because I just couldn't help noticing the tree!
It was located at one end of the yard, and there was a mesh fence around it for protection. It was similar in form to the plastic trees I'd seen, but there was much more to it than that. You could see details more intricate than in any artificial plant. And it was alive. But best of all was the smell. It was a fresh, living odor, alien to the antiseptic1 world outside with all its metal, plastic, and glass. I wanted to touch the bark, but the fence prevented me from doing so. The three of us stood there for a moment, and then the tour guide told us to make room for the next group. I didn't want to go — in fact, I felt almost like crying.
On the way back home, Mom and Dad were silent, and I read through one of the brochures the guide had passed out. When I came to the part that said the O'Brien home would be open only for the rest of this year, I was sad. They intend to tear down the place to make room for some kind of insurance building, and the tree will have to go, too.
For the rest of the trip, I just sat still, fingering the object in my pocket which I had picked off the grass in the O'Brien's back yard. I think it's called an acorn.

Answer 1

Answer: Old structures and trees were destroyed during the Boston urban-renewal campaign.

Explanation: I got it wrong thanks to the other person so here is the right answer:

Answer 2

Option C: The real tree is more detailed and smells fresher than the plastic trees that line the streets.

Step-by-step explanation:

The entire story talks about the superiority, beauty and realness of the real trees in contrast with the inferiority and artificiality of the plastic trees. So the main theme of the story is summed up in option C, i.e. "The real tree is more detailed and smells fresher than the plastic trees that line the streets."

Option A is not correct because this idea does not run throughout the story; it is mentioned in just one line and is just cause of the disappearance of real trees.

Option B is incorrect because, it is just an incident in the story not a theme or idea of the whole story.

Option D is incorrect because it is part of the setting of the story with no theme in it.