Hi! Sorry but the group of words given is not mentioned in the question. However, I can provide definitions for the options given:
(A) Philology: The study of the historical development of languages and the relationships between languages, including the analysis of their structure, sounds, and meaning.
(B) Theology: The study of the nature of the divine, religious beliefs, and the practice of religion.
(C) Acoustics: The branch of physics that deals with the properties of sound and how it behaves in various environments.
(D) Anthropology: The study of human societies, cultures, and their development.
Without knowing the specific group of words to find a synonym for, it is not possible to select the correct option. If you provide the group of words you want to find a synonym for, I'd be happy to assist further.