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 unknown word that help in determining its meaning. Antonym clues are opposites, word - parts include prefixes, suffixes and root words. Root words are the base form of a word. But the surrounding words are context clues.

Answer:

B. context clues