Answer:B
Explanation:He doesn’t seem stressed or unaware of anything in any way.
I know the answer isn't C or D. A or B both seem likely until you see that B involves a 'comma without a conjunction,' either way you should never put a comma before 'and'; I am not sure why but I am pretty sure this only applies in a formal document. So your answer is A.
A noun phrase denoting a person or thing that is the recipient of the action of a transitive verb, for example the dog in Jimmy fed the dog.