Consider the Following Argument: "George Washington Was a Man

Multiple Choice

Consider the following argument: "George Washington was a man. Thomas Jefferson was a man. Abraham Lincoln was a man. Teddy Roosevelt was a man. John F. Kennedy was a man. Barack Obama is a man. Therefore, all U.S. Presidents have been men." One problem with this argument is:

A) Some of the premises are unacceptable because no living person ever saw Washington, Jefferson, or Lincoln for themselves.
B) The premises are not relevant enough to the conclusion.
C) The premises are not sufficient to support the conclusion.
D) The argument lacks an adequate subconclusion.