Which of the following was a piece of pro-business legislation past in the 1950s?
a. federal highway-aid act
b. taft-hartley act
c. federal defense education act
d. servicemen readjustment act

B, taft-hartley act 
well because i just got the same question 

Protecting and assisting  u.s. citizens  living or traveling abroad; assisting u.s.  businesses  in the international marketplace; coordinating and providing support for international activities of other u.s. agencies (local, state, or federal government), official visits overseas and at home, and other diplomatic efforts.keeping the public informed about u.s. foreign policy and relations with other countries and providing feedback from the public to administration officials.providing  automobile registration  for non-diplomatic staff vehicles and the vehicles of diplomats of foreign countries having  diplomatic immunity  in the united states