Before writing anything, you must understand what you're writing about, or your topic. If you're writing a persuasive essay on why people should eat more kumquats, well you have to find out what kumquats are, firstly. Of course, you also have to understand your thesis. Without a strong thesis your essay will leave a lot to be desired
Answer:
it would be "How many children are affected by natural disasters every year?"
Explanation:
While the cousin would have experience with the other three and would therefor have answers, Unless she was a professional she would not know the answer to the third.