You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.

If a student playing the drums hits the drums with greater force, the sound would be
(A) quieter. (B) louder. (C) lower in pitch. (D) higher in pitch.
B

In an electric motor, electrical energy is converted into
(A) mechanical energy. (B) chemical energy. (C) thermal energy. (D) light energy.
A

In 1989, an oil spill off the coast of Alaska led to a decline in the population of many organisms. Which other population was most likely affected by the drop in population of the fish, otters, and seals?
(A) deer (B) eagles (C) frogs (D) snakes
B