Answer:
The sentence has two independent clauses.
Step-by-step explanation:
A clause is a group of words that contains a subject and a verb and can function as an adverb, adjective, or noun. There are different types of clauses depending on their function and form.
The given statement is "John and Sara were selected as partners for a project, yet Sarah did most of the work."
Here, the sentence has two independent clauses- "John and Sara were selected as partners for a project" and "Sarah did most of the work" joined by a coordinating conjunction "yet".
And looking at the structure of the sentence, we can determine that it is a compound sentence.