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.
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Question: As Earth revolves around the Sun, the number of daylight hours varies from place to place. In which location would the number of daylight hours remain constant?  
 (A) North Pole (B) Prime Meridian (C) Equator (D) Antarctica

Answer: C


Question: After a star runs out of most of its hydrogen fuel, it becomes hotter and more luminous. What stage does this represent in the life cycle of a star?  
 (A) quasar (B) protostar (C) red giant (D) white dwarf

Answer: C


Question: At which location are oceans the deepest?  
 (A) Mid-ocean ridge (B) Abyssal plain (C) Ocean trench (D) Volcanic island

Answer:
C