Answer:
cause and effect.
Step-by-step explanation:
Staying focused, studying daily, and doing all homework are the causes which lead to getting good grades (effect/aim). So, it is a cause and effect organization.
Chronological order is one in which incidents/event which occurred earlier are narrated earlier. However, sequential order is one which describes steps to perform a certain task - in the order in which they SHOULD be performed. The event may occur again and again or never at all. The organization in the question is not chronological because it does not narrate any events which have taken place in order of time. And it is neither sequential because, all the three steps need to happen simultaneously.
Comparison and contrast organization presents similarities and differences between different things/events. There are no such comparisons or contrasts in the question.
The organization is not in order of importance because all the three points are equally important and are written on the same level. Their result is presented in next stage.