Read the sentence.
jimmy carter won a nobel peace prize in 2002.
is this thesis sentence too broad, too narrow, or balanced in scope?
balanced
too broad
too narrow

This thesis sentence is too narrow. A thesis sentence must state the purpose of your paper and reveal your argument. This is a fine statement if you are just including a supporting fact or some background information, but for a thesis statement, it does not reveal a purpose or an argument. If the statement was something like "the work of Jimmy Carter made him the perfect candidate to receive a Nobel Peace Prize award," it would be fine, because you would be summarizing what your paper would be about (the work of Jimmy Carter) and bringing up your argument (that you believe he made a good candidate to win the award). Hope this helps.

The correct answer is option a.