The term that would best fit as the opposition of an argument would be a "counterclaim." By definition, a counterclaim is a term used to describe a claim wherein it serves as a "rebut" from the person that is the subject of the accusation. It is of course defined in the constitution, that the accused has the right to defend himself/herself thus making a counterclaim.
<span>She thinks he has fallen in love with Maria.</span>
A is correct! Alliteration is the repetitiveness of words and that has a lot of B’s in it.
