Which of the following could be a sign of aids in a person infected with hiv?
a. severe weight loss
b. herpes
c. pneumonia
d. all of the above

D. All of the above would be the answer

mark twain, real name samuel langhorne clemens, was an american writer, humorist, entrepreneur, publisher, and lecturer. among his novels are the adventures of tom sawyer and its sequel, the adventures of huckleberry finn, the latter often called "the great american novel". wikipedia