He called his royal math and science teachers his favorite subjects. There are a lot of ordinary people who love science and math subject because it gives them thrill when solving problems which use plenty of formulas to remember. So the answer in this question is, his favorite subject.
At the time, the British demanded sugar which is why they colonized countries like Jamaica. So the first one is definitely A, and the next one is obviously A because the rest options can’t have constant war.
I’m not 100% sure, but I think the answer is your third option