When should readers refer to a dictionary instead of relying on context clues? select all that apply. when they have timeeach unfamiliar word they findwhen the surrounding words are unfamiliarwhen an unfamiliar word appears frequently

The answer is "when the surrounding words are unfamiliar".

C) when the surrounding words are unfamiliar.

Explanation: context clues are hints that an author gives to help define a difficult or unusual word within a book. The clue may appear within the same sentence as the word to which it refers or it may follow in the next sentence. They can be synonyms, definitions, explanations, etc. When we found a word or phrase that we don't understand, and all the surrounding words are also unfamiliar, we should refer to a dictionary to be able to understand the text.

i think it is who. im not sure to be honest

the apollo program, also known as project apollo, was the third united states human spaceflight program carried out by the national aeronautics and space administration (nasa), which succeeded in landing the first humans on the moon from 1969 to 1972.