Association areas of cerebral cortex are

Options

A. purely sensory
B. purely motor
C. neither clearly sensory nor motor
D. absnent

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the nature of the association areas of the cerebral cortex. We need to determine whether these areas are purely sensory, purely motor, neither, or absent.

2. **Identifying Sensory Areas**: The primary sensory areas of the cerebral cortex include the primary auditory cortex and the primary visual cortex. These areas are specifically dedicated to processing sensory information.

3. **Identifying Motor Areas**: The primary motor cortex is responsible for motor functions. It controls voluntary movements but is not classified as an association area.

4. **Analyzing the Options**:
- **Option A (Purely sensory)**: Since the association areas are not dedicated solely to sensory processing, this option is incorrect.
- **Option B (Purely motor)**: Similarly, the association areas are not solely responsible for motor functions, making this option also incorrect.
- **Option C (Neither clearly sensory nor motor)**: Association areas integrate information from various sensory modalities and are involved in higher cognitive functions, such as memory and communication. This makes this option correct.
- **Option D (Absent)**: This option is incorrect because association areas do exist in the cerebral cortex.

5. **Conclusion**: Based on the analysis, the correct answer is **Option C**, which states that association areas of the cerebral cortex are neither clearly sensory nor motor.