Answer:
I agree with the answer of curiosity.
Step-by-step explanation:
I haven't read the book, but doing a quick search I found this: "It is hard to say whether Saki himself takes a stance on curiosity, but he makes it clear that it is an integral part of childhood, especially in developing how children interact with adults and understand the world around them."
Because the author makes a stance that curiosity is an integral part of childhood, I agree with the selected answer in the image.