What’s the answer??? Help me quickly

In the developed world, women are increasingly more likely to delay childbirth until their mid- to late- twenties or long because

Hurricanes a. usually form over land b. usually intensify over land c. gain strength from ocean heat d. usually form over the poles

This is a 2017 topographic map of puerto rico in the united states, and i'm sorry that people there have suffered such a disaster. i want to ask, what do the yellow dots and areas represent on this graph? and the blue area and the little blue circle, and the little blue sign that looks like a signal tower, what do they stand for?