Plz solve this question.

Dear Student
1 molecule of glucose yields 686 kcal of which only 262.8 is useful and rest is lost as heat.
1 molecule of glucose yields 7.3 kcal
No. Of glucose for 2800 kcal
2800/ 262.8 = 11
Therefore 11 molecules of glucose
No. Of ATP = 2800/7.3 = 384 
Therefore correct answer is option B.
Regards