Which is the correct use of "its" and "it's"?

According to conservative usage rules, which of the following sentences might be considered INCORRECT?

Which answer choice uses "for," "four," or "fore" correctly?

Which of the following is the correct use of "complemented"?

Which punctuation mark is most often used to create a compound word, such as "mother-in-law"?

Fill in the blank: On the ___ day of Christmas, my true love gave to me, twelve drummers drumming.

Which is the correct use of "its" and "it's"?

Choose the correct sentence: