Answer:
4. Semantics
Step-by-step explanation:
Semantics is the branch of linguistics that studies the connotation (the suggested or implied meaning) and the denotation (the explicit or literal meaning) of words, phrases, sentences, larger units of discourse (like texts, or narratives), signs, and symbols. It also studies the ways in which words can be semantically related to each other, such as in the case of synonyms, antonyms, and homophones.