The correct answer is D, as the title that would best suit the period of Iraqi history from 1980 through 1990 is "The era of Iraqi agression".
This time could be called like that because during those 10 years Iraq invaded both Iran in 1980 (which led to a war that lasted until 1988), and Kuwait in 1990 (which led to the Gulf War, in which a coalition led by the United States defeated the Iraqi forces and restored the Kuwaiti territory).
C is the answer. It illustrates an example of the arms industry having a vested interest in shaping public policy, specifically military policy.
I've seen this question before -- I'm guessing you're working with a chapter on European Renaissance and Reformation that featured a secondary source (source B) reference from historian Steve Ozment. In document A, from a letter to the pope sent by Martin Luther, Luther accused the Roman Catholic Church of having become a den of thieves, that the whole hierarchy needed reform. That early letter (from 1520) supports Ozment's claim that Luther's Reformation movement began as a protest against "arbitrary, self-aggrandizing hierarchical authority" in the church.
