Answer
The terrain around A is much steeper.
Work Step by Step
Point A is found a little to the right and below "MTN", where the curves are very closely spaced, indicating a change in altitude in a relatively small linear distance (say, a line through A and the peak). This is a very steep terrain.
Point B is an area where curves are farther apart from each other, so altitude changes gradually, much less steep than the region around A.
The terrain around A is much steeper.
