## **Core Concept**
The question pertains to the classification of Intelligence Quotient (IQ) scores, which are used to measure human intelligence. The IQ score is a standardized score used to express an individual's cognitive abilities relative to their age group. The classification of IQ scores into different ranges helps in understanding an individual's cognitive functioning.

## **Why the Correct Answer is Right**
IQ scores are generally categorized as follows:
- **Average or Normal Intelligence**: This range typically includes IQ scores from 85 to 114, with 100 being the average.
- **Borderline Intellectual Functioning**: This is usually around 71-84.
- **Intellectually Gifted**: Above 140.
- **Mild Intellectual Disability**: 50-70.

Given these ranges, an IQ value of 90-109 falls squarely within the **Average or Normal Intelligence** category. This range is often considered to represent a normal or average cognitive functioning level.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Typically represents a higher range of intelligence, possibly **Gifted** or **Highly Gifted** categories, which are not correct for the IQ range of 90-109.
- **Option B:** Could represent a lower range, possibly **Borderline Intellectual Functioning** or **Mild Intellectual Disability**, which does not align with the IQ range provided.
- **Option D:** Might represent a range that is too low, such as **Intellectual Disability**, which is clearly not correct for the given IQ range.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the average IQ score is 100, with a standard deviation of 15. Most people (about 68%) score between 85 and 115. Therefore, an IQ score of 90-109 is well within the normal range, indicating normal cognitive abilities.

## **Correct Answer:** . Average or Normal Intelligence