Which term describes problem-solving and reasoning?

• A. Functional death
• B. Fluid intelligence
• C. Crystallized intelligence
• D. Gerontology

Answer: (B)

Fluid intelligence is the capacity for solving novel problems and reasoning through new situations, using flexible thinking and pattern recognition rather than relying on what you already know. It’s the ability you use to figure things out when you don’t have a built-in ruleset or practiced answers. This distinguishes it from crystallized intelligence, which draws on knowledge and skills gained through education and experience. Functional death and gerontology don’t describe this cognitive process—functional death refers to the cessation of bodily functions, and gerontology is the study of aging as a field.