Answer:
A. 3.44 :1
Step-by-step explanation:
We use ratios to compare things, that is, this helps us to know how much of one thing there is compared to another thing. We can express ratios in different ways:

In this exercise, we know that:
- A boat has a mass of 31,999 kg
- A plane has a mass of 110,000 kg
And we want to know the ratio of weight of the plane to the boat. So, if:
a: mass of the boat 31,999 kg
b: mass of the plane 110,000 kg
Then, the ratio of weight of the plane to the boat is:

So the correct option is A. 3.44:1