In a race of 15 participants, D is ranked 3rd from the top and E is ranked 4th from the bottom. If D and E swap their positions, what will be D's new rank from the bottom?
Answer: B. 11th
Initially, D is 3rd from the top, which means D is 15 - 3 + 1 = 13th from the bottom. After swapping with E, who is 4th from the bottom, D will be 4th from the bottom. Therefore, D's new rank from the bottom is 12th.