Two Mountain Glaciers Merge Their Flows in a Glacial Valley

Two mountain glaciers merge their flows in a glacial valley.Prior to their merger,each possessed two lateral moraines and no medial moraines.As a result of a merger,the new larger glacier in the valley will possess ____________.

A) four lateral moraines and no medial moraines
B) three lateral moraines and no medial moraines
C) two lateral moraines and two medial moraines
D) two lateral moraines and one medial moraine