Question

to find a words meaning, the reader can study the surrounding words, which are called the
antonym clues.
context clues.
word parts.
root words.

Explanation:

Context clues are the words around an unfamiliar word that help in determining its meaning. Antonym clues are words with opposite meanings, word - parts include prefixes, suffixes and roots, and root words are the base of words. But the surrounding words are context clues.

Answer:

B. context clues