Final answer:
The sentence that is capitalized correctly is 'On Veteran's Day, we honor those who have served our country in the military.'
Step-by-step explanation:
The sentence that is capitalized correctly is: On Veteran's Day, we honor those who have served our country in the military.
Proper nouns like days of the week and holidays should be capitalized. Additionally, the correct form of capitalization for Veteran's Day is with an apostrophe in front of the s, indicating the possessive form.
Using lowercase for military is also correct, as it is not a proper noun and does not refer to a specific military branch.
Learn more about Capitalization in English