Identify one challenge that settlers faced when farming on the great plains

a. forests had to be cut down to create farmland

b. sod had to be broken to prepare fields for crops

c. lakes had to be drained to make farmland

d. swarms of bees in the spring time destroyed crops

the hollywood film industry of 1950 was threatened on several different fronts. television broadcasting was rapidly becoming the dominant entertainment medium in the united states. the paramount anti-trust consent decree requiring separate ownership for production companies and theater chains had gone into effect on 1 january 1950. large numbers of young men and women were marrying, having children, and moving to the suburbs, which affected the viability of downtown first-run movie theaters. foreign revenues were endangered by protectionist tactics including quota systems, high taxes, and blocked funds. finally, the morality and patriotism of hollywood films and filmmakers were under attack from government, religious, and citizens' groups.

explanation:

b or c im pretty sure