Both a and b
1682 mcqs  
All of above
1677 mcqs  
All of the above
1599 mcqs  
All of These
1017 mcqs  
NONE OF THESE
676 mcqs  
2
671 mcqs  
All the above.
638 mcqs  
1
637 mcqs  
3
582 mcqs  
4
580 mcqs