Which of the following areas has a greater insolation?

A) areas of high latitudes

B) areas of low latitudes

C) all areas have the same insolation

I think it's

B) areas of low latitudes

because the sun rays arrives more directly and the distance is shorter, so the heat and the energy received is more elevated. An example is the Equator, the hottest zone of the Earth, is at around 0° of latitude.