单选题It is not feasible to build sea defenses to protect against erosion because _____.A it is too costly and will endanger neighbouring areasB the government is too slow in taking actionC they will be easily knocked down by waves and currentsD house agents
题目
单选题
It is not feasible to build sea defenses to protect against erosion because _____.
A
it is too costly and will endanger neighbouring areas
B
the government is too slow in taking action
C
they will be easily knocked down by waves and currents
D
house agents along the coast do not support the idea