Which of the following was a direct cause of the formation of the bracero program?

Explanation:

Bracero Program was the program to initiated during the second world war to fulfill the labor crisis in US. The program included a laws and diplomatic arrangement which US signed Farm Labor Agreement with mexico. It was signed in August 1942. The agreement provided sanitation, adequate shelter and food along with wage of 30 cents per hour to the laborers. contract also allowed the importation of laborers from Guam. The program terminated in 1964.  Te contract also allowed the importation of laborers from Guam. The program terminated in 1964.  The main reasons for starting Bracero program was shortage of labor in agriculture in rural areas of USA.

the term is einsatzgruppen

b is the answer i am assuming