Islamic terrorism is likely to persist for at least half a century, but no longer

The __________ presides over the House of Representatives in a way that smooths the passage of majority-backed bills

a. majority leader b. majority whip c. president pro tempore d. Speaker

A poll taken on August 15 shows Candidate A leading by a 55 to 45 percent margin over Candidate B, with a margin of error of plus or minus three percentage points. Assuming no sampling problems, what is the best evaluation of this poll's results?

a. Candidate A will win the November election by a 55 to 45 percent margin. b. Candidate A will win the November election, gathering between 52 percent and 58 percent of the vote. c. Candidate A will win the November election, but it is impossible to predict the margin. d. Candidate A is ahead in August, but polls cannot predict the future. e. Candidate A will lose the November election because traditionally a lead this small in August collapses by mid-September.