What role does the house of representative have in the impeachment process?

The United States Constitution grants the power of impeachment to the House of Representatives (Article I, Section 2, the Constitution reads, “The House of Representatives shall chuse [sic] their Speaker and other Officers; and shall have the sole Power of Impeachment.”). Bringing impeachment charges against federal officials is part of the House of Representative's investigatory and oversight responsibilities. Impeachment is defined as the act of removing a Government official due to crimes committed while said official was in office.

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.

what are the statements