The process that results from people building groins that protrude into the sea is: a. Sediment becomes spread out fairly evenly
b. More sediment becomes available downshore
c. More sediment is deposited on the side of the longshore current
d. Less sediment is deposited on the side of the longshore current

The answer is "Option d".

Explanation:

The cities upon the seaside often construct grounds that stretch inside the water to preserve their beach. It procedures is done out through sand on the side of the coast, which leads to deposit AND the sediment in the region underneath the coastline are much less accessible, which causes the coastal beach to start to erode.

answer ( groundwater);