This is an example of D. irony.
Irony is when you say something which is actually the opposite of what you think, in order to make a funny statement. So, this person said the doctor was unusually prompt (which means punctual, someone who always arrives on time), even though he was half an hour late. <span />
Answer:
B. Infinitive phrase is the answer
On the Equality of the Sexes. On the Equality of the Sexes, also known as Essay: On the Equality of the Sexes, is a 1790 essay by Judith Sargent Murray. Murray wrote the work in 1770 but did not release it until April 1779, when she published it in two parts in two separate issues of Massachusetts Magazine.