**Core Concept**
Intellectual disability, also known as intellectual developmental disorder, is characterized by significant impairments in cognitive functioning and adaptive behavior. The severity of intellectual disability is often categorized based on the individual's Adaptive Behavior Scale (ABS) scores and Intelligence Quotient (IQ) levels. In this case, the child has an IQ of 50, placing them in the moderate range of intellectual disability.

**Why the Correct Answer is Right**
Children with an IQ of 50, corresponding to the moderate range of intellectual disability, typically exhibit significant impairments in cognitive functioning, including difficulties with problem-solving, learning, and communication. They may require support with daily living skills, such as personal care, grooming, and feeding. Children with moderate intellectual disability may also exhibit adaptive behavior deficits, including difficulties with social interactions and emotional regulation.

**Why Each Wrong Option is Incorrect**
**Option A:** Children with an IQ of 50 are unlikely to perform tasks that require complex problem-solving or abstract thinking, such as managing finances or making long-term plans.
**Option B:** While children with moderate intellectual disability may exhibit some independence in daily living skills, they typically require ongoing support and supervision.
**Option C:** Children with an IQ of 50 are unlikely to demonstrate advanced cognitive abilities, such as reading complex texts or performing high-level mathematical calculations.

**Clinical Pearl / High-Yield Fact**
Children with intellectual disability may exhibit a range of adaptive behavior deficits, including difficulties with social interactions, emotional regulation, and daily living skills. The Adaptive Behavior Scale (ABS) is a widely used assessment tool to evaluate adaptive behavior in individuals with intellectual disability.

**Correct Answer: C.**