Match the following groups of words with the correct one-word substitutions.

Phrase	One-word substitution
1. Study of languages	a. psephology
2. Study of handwriting	b. philology
3. Study of election trends	c. theology
4. Study of religion	d. graphology

Correct option is C

The correct one-word for the given group of words is option (c).
1. Study of languages – Philology (भाषा विज्ञान)
1. Study of handwriting – Graphology (लिपि विज्ञान)
1. Study of election trends – Psephology (निर्वाचन विश्लेषण)
1. Study of religion – Theology (धर्मशास्त्र)
Example:
· She pursued philology to understand the roots of Indo-European languages.