Which of the following is an interrogative sentence

While doing your research, all of the following would be good secondary sources to use to develop a general overview about the vietnam war, except: a. the encyclopedia britannica b. an interview with a veteran of the war c. a textbook on the history of the 20th century d. an online resource such as ‘wikipedia.org’ or ‘’

Plz change it i can not change this sentences .

What point of view is expressed by judith sargent murray in her essay "on the equality of the sexes"?