Read the excerpt from The Riddle of the Rosetta Stone by James Cross Giblin. Some of these scholars made otherwise significant contributions to the world's knowledge of ancient Egypt. A German priest of the 1600s, Athanasius Kircher, wrote the first grammar and vocabulary of Coptic, the language of Christian Egypt. These books were to prove of great value when the hieroglyphs were eventually deciphered.

Which words does Giblin use to show his viewpoint?
A: priest and vocabulary
B: knowledge and scholars
C: significant and great value
D: Coptic and Christian Egypt