Q: In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Fact1: clouds are formed by water vapor rising into colder regions of the atmosphere and condensing, Fact2: Cloud cover and precipitation cause temperature fluctuations., Question: What can cause temperature fluctuations. (A) mountain formations (B) remove toxic material from the stomach before it is absorbed (C) ocean tides (D) trees growing (E) Something that can be converted to kinetic and heat energy by a motor (F) keeping food fresh for long periods of time (G) water vapor rising into colder regions of the atmosphere and condensing (H) skin redness and pain, possible swelling, blisters, fever, headaches
A:
G