As a result of this crisis in 1973–1974, u. s. citizens became aware of ecology.
a.
energy crisis
c.
nuclear war
b.
urban flight
d.
loss of farm land

As a result of the energy crisis, in 1973-1974, U.S citizens became aware of ecology. If not, their environment would be endangered.

As a result of this crisis in 1973–1974, U.S. citizens became aware of an energy crisis, since this issue revolved around the fact that OPEC made an oil embargo.

Ibelieve the answer is c