How Did American Companies Contribute to the Influx of Puerto

How did American companies contribute to the influx of Puerto Rican migrants by the hundreds of thousands beginning in the 1950s?

A) They were looking for cheaper labor to replace expensive union contracts.
B) They recruited Puerto Ricans primarily for construction jobs in Florida and in the fishing industry.
C) The end of the bracero program in 1954 prompted American agro-business to look for new cheap labor in Puerto Rico.
D) The increasing control of land by U.S. sugar companies on the island pushed small tobacco and coffee farmers off the land and into a search for jobs on the mainland.
E) The dramatic environmental destruction corporations brought to Puerto Rico left residents no choice but to migrate to the mainland.