You may not realize it yet, but you already know how to find the correct answer to this question!
I looked through your answers for this quiz, and you got question 8 correct — that question is about the exact same circuit, except it’s asking for the heat produced by R1. To find the wattage of R2, all you have to do is use the same Ohm’s law equation that you did to find the wattage of R1.
Let me know if you figure it out.