Final answer:
The statement falls under the Cognitive component of the A-B-C process, as it reflects a personal belief about the necessity of achieving perfect grades, which relates to self-efficacy.
Step-by-step explanation:
The part of the A-B-C process in which you would be saying to yourself, "it is necessary that I get perfect grades in school," is the Cognitive component. This falls under the realm of attitudes and beliefs, where the cognitive aspect reflects the thoughts, beliefs, and knowledge one has about a situation. Here, the specific belief about the necessity of perfect grades is a reflection of personal standards and expectations, which directly relates to the concept of self-efficacy. Self-efficacy is an individual's belief in their own capabilities to achieve goals, suggesting that the statement about needing perfect grades is rooted in cognitive evaluations of one's own academic abilities and objectives.