The correct answer is: If he had studied more, Kamal would have been able to secure a good first division.
The other options are incorrect because they use the wrong tense.
- Option A: If he would have studied more. This uses the past perfect conditional, which is used to talk about hypothetical situations that did not happen. In this case, the situation is that Kamal did not study more, so the past perfect conditional is not appropriate.
- Option B: If he were studying more. This uses the present subjunctive, which is used to talk about hypothetical situations that are possible or desirable. In this case, the situation is that Kamal did not study more, so the present subjunctive is not appropriate.
- Option C: If he had studied more. This uses the past perfect, which is used to talk about past events that happened before another past event. In this case, the situation is that Kamal did not study more, so the past perfect is appropriate.
The sentence “If he had studied more, Kamal would have been able to secure a good first division” means that if Kamal had studied more, he would have been able to get a good grade. This is a hypothetical situation, because Kamal did not study more, so he did not get a good grade.