Philology is the

The correct answer is: D. science of languages.

Philology is the study of language in its historical and cultural context. It encompasses the study of the history of a language, its grammar, its vocabulary, and its literature. Philology is also concerned with the relationship between languages and their speakers.

Option A is incorrect because the study of bones is called osteology.

Option B is incorrect because the study of muscles is called myology.

Option C is incorrect because the study of architecture is called architecture.