Which of the alternatives below is NOT an example of a correctly written indirect question?

Analyze the statements below:

I. In “You must buy a ticket to enter the museum”, the word “must” indicates an obligation.
II. In “You don’t have to go to the meeting if you’re busy”, the use of “don’t have to” indicates a prohibition.
III. In “You must read this, I’m sure you’ll find it interesting”, “must” indicates a strong recommendation, but not an obligation.

Which ones are correct?

Analyze the sentences below:

I. Jimmy, ________ sister is really sweet, just got in a fight with his classmate.
II. These are the books and authors ________ our professor recommended.
III. That house, ________ was built in 1970, used to belong to my family.

Mark the alternative that fills in, correctly and respectively, the blanks in the sentences above.