The correct answer is A. This is the case of using comma before a coordinating conjunction <em>and</em> because it links two independent clauses. We can observe that there two parts of this full sentence and each part is independent from each other. Both of them have their own subject and verb. Therefore, we are using a comma before <em>and</em>.
Answer:
he is a boy with good hummer but bad at lisaning
Explanation:
I don't know what your options are but from my experience I have to go with faithfulness and/or loyalty.
Hope this helps!
-Payshence
