Choose the answer that best matches the word in italics. Use context clues to determine the meaning of the word, if necessary.
For many *millennia*, people believed Earth was flat.
A. Reasons
B. thousands of years
C. Generations of people
D. Beliefs or propositions
B. thousands of years
B. thousands of years
To determine the meaning of the word in italics, "millennia," we can use context clues. In this sentence, it says "For many *millennia*, people believed Earth was flat." Based on this context, we can infer that "millennia" refers to a long period of time.
Therefore, the answer that best matches the meaning of "millennia" is B. thousands of years, as it signifies a long span of time.