Which sentence correctly capitalizes days of the week?

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Multiple Choice

Which sentence correctly capitalizes days of the week?

Explanation:
The key idea is that days of the week are proper nouns and must be capitalized. In this sentence, using Monday with a capital M and no apostrophe follows standard rules for naming days and fits the meaning of meeting on that day. The version with lowercase monday breaks capitalization rules. The form with Monday's adds an apostrophe-s, making it possessive (or implying something belonging to Monday), which changes the sense and isn’t needed here. The last one also uses lowercase and includes an apostrophe, which is likewise incorrect for this context. If you wanted to refer to multiple occurrences, you’d say “on Mondays,” but for a single day the correct form is on Monday.

The key idea is that days of the week are proper nouns and must be capitalized. In this sentence, using Monday with a capital M and no apostrophe follows standard rules for naming days and fits the meaning of meeting on that day.

The version with lowercase monday breaks capitalization rules. The form with Monday's adds an apostrophe-s, making it possessive (or implying something belonging to Monday), which changes the sense and isn’t needed here. The last one also uses lowercase and includes an apostrophe, which is likewise incorrect for this context. If you wanted to refer to multiple occurrences, you’d say “on Mondays,” but for a single day the correct form is on Monday.

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