The individual applying crystallized intelligence to solve a problem require learning from acquired knowledge and past experiences.
Answer: Option D is correct
Step-by-step explanation:
The intelligence is classified as two types. They are fluid intelligence and crystallized intelligence.
The fluid intelligence is flexible in nature and it decreases with increase of age.
The power of crystallite intelligence increases with age as the basis of crystallite intelligence is prior knowledge about facts and experienced acquired by the individual through his past experience.
So as the increase in age leads to more experiences acquired by the individual it will help the individual to solve a problem using crystallite intelligence from his experience and knowledge.