Answer:
representations and warranties
Explanation:
Here, in the given instance,
Marsha makes a representation that she has a right to confirm that she owns the piece of art.
Accordingly, Marsha is making this representation to ensure that she has a right to confirm that the art belongs to her after she buys it from Antonio.
As he also wants to confirm about the authenticity and quality of the art, it is a kind of warranty that the art is not forged and real.
Thus, with his statement towards Antonio, Marsha confirms the representation and warranties.