Answer:
C. In mid-August, temperatures in the Pecan Bayou area regularly reach 105 degrees.
Step-by-step explanation:
Hypens (-) are used to glue words together, they link things in a sentence. One rule of the use of hypens states that they can be used with prefixes when they come before proper nouns or proper adjectives. Remeber that a prefix is a letter or group of letters that are placed before a root word in order to change it's meaning. In this case August is a proper noun, and the prefix is mid- meaning in the middle of a period of time, in the middle of August.