There are 3 ways in which she can answer the questions:- 1. 3 from group 1 and 3 from group 2 She can select 3 questions from each group in 5C3 ways and thus the total number of ways =5C3×5C2=100 2. 4 questions from group 1 and 2 questions from group 2 She can select 4 questions from group 1 in 5 ways and 2 questions from group 2 in 10 ways and thus, total number of ways = 50 Same will be the case for 4 questions from group 2 and 2 questions from group 1 Thus, the total number of ways =100+50+50=200 Hence, option C is the correct answer.