which is the best way to complete the text?\na colony of carpenter bees built a nest in the decrepit wood…

Brief Explanations:

To determine the correct completion, we analyze sentence structure and punctuation. The first part is a complete clause about the bees' nest, so the next part ("we don't intend...") should start a new independent clause. A period after "backyard" separates the two independent clauses, and "We" (capitalized) starts the new clause correctly. The first option lacks punctuation, and the third uses a comma which would create a comma splice (incorrectly joining two independent clauses with a comma).

Answer:

B. backyard. We