In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
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Question: Obstacles that might impede a dune are (A) God (B) emotions (C) cacti (D) cancers

Answer: C


Question: An electric car causes (A) more CO2 emissions (B) equal CO2 emissions (C) electric emissions (D) less CO2 emmissions

Answer: D


Question: A telescope is required for detailed observation of what? (A) mountains (B) oceans (C) clouds (D) astral bodies

Answer:
D