Question

how did the u.s. role in the nicaraguan civil war change in 1982?
the u.s. government stopped official funding for the contras
the u.s. government acknowledged the legitimacy of the nicaraguan government
the u.s. government supported irans intervention to stop communist insurgents
the u.s. government began mass shipments of weapons to nicaragua

Explanation:

In 1982, due to concerns about human rights violations by the Contras and political pressure, the U.S. Congress passed the Boland Amendment, which cut off official U.S. funding for the Contra rebels fighting the Sandinista government in Nicaragua. The other options are incorrect: the U.S. never acknowledged the Sandinista government's legitimacy in this context, there was no U.S. support for Iranian intervention in Nicaragua, and mass weapons shipments were not initiated in 1982 (and were restricted by the funding cutoff).

Answer:

The U.S. government stopped official funding for the Contras