Which of the following was not a candidate for president in 1992?
a. george h. w. bush
b. john mccain
c. ross perot
d. bill clinton

John McCain was not a candidate for the United States presidential elections in 1992.  

Explanation:

The candidates who disputed the position for president in the electoral contest of 1992 were George H.W. Bush (Republican Party), Bill Clinton (Democratic Party) and independent candidate Ross Perot.

John McCain was an American politician and military man who was Senator for Arizona from January 1987 until his death. He was the candidate of the Republican Party for the presidency of the United States in the 2008 elections. He did not win since the title as president was won by Barack Obama.

i believe your answer is d)