No, it is technically false that <span>Hieroglyphics were the only written language used by Egyptians, although this form of writing was by far the most popular for the Ancient Egyptians. </span>
I would say honesty, because people already thought he was very charismatic, that is one reason why he won the presidency.
[I'm not sure though, but that is the answer I would go with.] I hope this helps.