Just add 750 and 400 to get 1150. 5th century means 400 yrs after bce.
The result, called Mandate for Leadership, epitomized the intellectual ambition of the then-rising conservative movement. Its 20 volumes, totaling more than 3,000 pages, included such proposals as income-tax cuts, inner-city “enterprise zones,” a presidential line-item veto, and a new Air Force bomber.
Despite the publication's academic prose and mind-boggling level of detail, it caused a sensation. A condensed version -- still more than 1,000 pages -- became a paperback bestseller in Washington. The newly elected Ronald Reagan passed out copies at his first Cabinet meeting, and it quickly became his administration’s blueprint. By the end of Reagan’s first year in office, 60 percent of the Mandate’s 2,000 ideas were being implemented, and the Republican Party’s status as a hotbed of intellectual energy was ratified. It was a Democrat, Daniel Patrick Moynihan, who would declare in 1981, “Of a sudden, the GOP has become a party of ideas.”
Answer:
It allowed for longer, safer voyages. C
Explanation: