The U. S. policy of containment was meant to
a. divide Berlin.
b. stop nuclear proliferation.
c. stop communism’s spread.
d. win World War II.

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.