Which of the following sentences uses correct parallel structure?

What is an example of a homophone?

Which of the following words is spelt correctly?

Which of the following is an example of a complex sentence?

What is the correct use of a colon in a sentence?

Which sentence correctly uses the word “there/ they’re/ their”?

What is the correct way to form the possessive of a plural noun ending in “s”?

Which of the following sentences uses a semicolon correctly?

Which sentence is punctuated correctly?

Which of the following is an example of correct subject-verb agreement?