Identify the complete adjective clause. I elected to take astronomy, which is not a required course. To take astronomy I elected to take astronomy which is not which is not a required course is not a required course a required course

The complete adjective clause in the sentence is: "which is not a required course."

Explanation:

A dependent adjective clause is a group of words containing a subject and a verb whose purpose is to modify a noun or a pronoun by providing further description or information about it. In other words, it functions as an adjective. Adjective clauses are often introduced by relative pronouns such as who, which, or that. Having that explanation in mind, in the sentence " I elected to take astronomy, which is not a required course," the complete adjective clause is "which is not a required course." It is modifying the noun "astronomy", providing more information about it.