Read this excerpt from The Riddle of the Rosetta Stone.

The only hieroglyph that confused Champollion was the one for "T," which was different in the two names.

What is the best evidence in the text for the prediction that Champollion will eventually figure out the "T” hieroglyph?

a. Champollion promised his brother that he would not give up.
b. Champollion cared only about being the first one to discover things.
c. Champollion showed determination when faced with other obstacles.
d. Champollion is described as a scholarly person.