How did the National Reclamation Act affect the environment?
A)Private irrigation companies staked claims to sections of all riverbeds and redirected the water.
B)Water management projects created huge reservoirs and lakes where there had been dry canyons.
C)Prospectors began mining and farming in Utah, New Mexico, Colorado, Nevada, and California.
D)Millions of acres of land were set aside for water preservation and for later public use.

The correct answer is B