The main topic of conversation between Madam Potiphar and Asenath in The Chaste Adventures of Joseph: A Comedy is Madam Potiphar’s servant. Option A is correct.
Joseph was Potiphar's servant. Madam Potiphar attempted to seduce Joseph, her servant.However, he rejected her proposal. In the conversation they were having, Asenath, Potiphar's daughter, was telling Madam Potiphar that she considered that Joseph was a very interesting man.