Answer:
A.The Anasazi left their cliff dwellings (possibly because of drought) and disappeared before Europeans arrived.
Explanation:
Parentheses are used to further expand the information givne on a certain sentence, sentences well constructed should be readable without the information between the parentheses, you use commas after a parentheses if the sentence without the parentheses would need them, in this example the sentence wouldn´t need commas to separe the sentence.
