Which layer will be the youngest in a cross section of land that contains five layers and has no evidence of unconformity? A. the top layer B. there is no way to tell C. the bottom layer D. one of the middle layers

Ithink the answer is either a , c or d

The answer is ocho because ocho is 8

Where are the colloms

The highest point of a hill (or mountain) is a single point.
a single point can only be precisely marked with a dot. 
putting on a contour line is impossible  on a single point because the contour line is created after multiple points that have the same hight are marked, and after that, all of those points are connected with a line that creates a closed area. so the highest point, as said above, is a single point, there are no other points with the same height, so the only possible way for it to be marked is with a dot, and there is no possibility for a contour line.