Answer:
The sentence has two independent clauses.
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<em> "John and Sara were selected as partners for a project, yet Sarah did most of the work."</em>
Here, the sentence has two independent clauses- <em> "John and Sara were selected as partners for a project"</em> and <em>"Sarah did most of the work" </em>joined by a coordinating conjunction "yet".
And looking at the structure of the sentence, we can determine that it is a compound sentence.