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.
--------
Question: A delta at the mouth of a river is the direct result of  
 (A) runoff from sewage. (B) deposition of sediment. (C) an ancient glacier that passed through. (D) an underground river flowing to the ocean.

Answer: B


Question: A meteoroid becomes a meteorite when it  
 (A) impacts the surface of a planet. (B) encounters the atmosphere of a planet. (C) makes a complete orbit around a planet. (D) starts to burn up in the atmosphere of a planet.

Answer: A


Question: During winter months, Amina sometimes notices ice covering the hoods of parked cars. Once the engine of the car runs for a while, the ice on the hood begins to melt. What form of energy is released from the car engine to melt the ice?  
 (A) chemical (B) electrical (C) heat (D) light

Answer:
C