Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
I look for other sources, I found the choices below that should accompanied with your question above:
a. 2.5 kg x m2
b. 6.0 kg x m2
c. 7.5 kg x m2
d. 9.0 kg x m2
i think the answer is B.