Which of the following is NOT listed as a sign of intellectual disability?

• A. Developmental delay in sitting up, crawling, and walking
• B. Having trouble solving problems
• C. Not understanding how to pay for things
• D. Having trouble understanding social rules

Answer: (C)

Intellectual disability is identified by signs that show delays or difficulties in thinking, learning, and everyday functioning. Developmental delays in sitting up, crawling, and walking point to early issues with motor and cognitive development. Trouble solving problems reflects weaker reasoning and problem‑solving skills. Trouble understanding social rules signals challenges with social adaptive behavior. Not understanding how to pay for things isn’t typically listed as an early or standard sign; it’s a practical life skill that develops with learning and experience and isn’t used as a primary indicator of intellectual disability.