B. 37.25 points
Feedback Average score of 36 boys = 40 points
Total score of 36 boys = 36 x 40 = 1440
Average score of 44 girls = 35 points
Total score of 44 girls = 35 x 44 = 1540
Total score of Students = (36+44)80 = 1440 + 1540 = 2980 points
Average score of the whole class = (2980 / 80) = 37.25
Hence the required answer is 37.25 points.