The most likely factor from the factor analytic model of intelligence that would help you in an exam is option d) Crystallised intelligence.
Crystallised intelligence refers to acquired knowledge, skills, and abilities that are based on experience and learning. It involves the ability to retrieve and apply previously learned information, such as facts, concepts, and problem-solving strategies. This type of intelligence is often measured by tests that assess vocabulary, general knowledge, and comprehension.
In an exam setting, having a strong foundation of crystallised intelligence can be beneficial because it allows you to draw upon your accumulated knowledge and apply it to various questions or tasks. It involves understanding concepts, recalling information, and using learned strategies effectively.