Deductive reasoning, which is a type of reasoning where a general fact is broken down into a more specific case to make an inference. This general fact can be a broad branch of knowledge then gets into its parts that may comprise this broad knowledge. I hope this helped.
Answer: it's C
Explanation: At the same time, the Southern Hemisphere is tilted away from the sun and experiencing winter. The summer season begins in the Northern Hemisphere on June 20 or 21, known as the summer solstice, when the axis of rotation is tilted a full 23.5° toward the sun.