Name the cold currents in south Atlantic Ocean

Wich of the following is not likely to appear on a map

Under which condition below would u expect a coarse-grained intrusive rock like diorite to form?

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?