Total number of students is given and percentage of students enrolled in different activity is given. Calculating number of students participating in each activity, we get
Activity
Total Students
Girls
Boys
Swimming
480
245
235
Singing
630
490
140
Drawing
420
280
140
Dancing
720
350
370
Handicraft
750
385
365
A) Boys enrolled in singing and handicraft =140+365=505 (III) B) Girls enrolled in swimming and drawing =245+280=525 (II) C) Girls enrolled in singing and drawing =490+280=770 (IV) D) Girls enrolled in dancing and handicraft =350+385=735 (I) Therefore, answer is option D.