Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.
9 players - Forward, Midfielder, Defender, Goalkeeper
10 players - Forward, Midfielder, Defender, Goalkeeper
11 players - Forward, Midfielder, Defender, Goalkeeper
12 players - Forward, Midfielder, Defender, Goalkeeper
Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.