Step 1: Understanding Cerebral Palsy.
Cerebral palsy encompasses a range of disorders impacting movement, posture, and muscle tone, stemming from early brain development injuries or abnormalities.
Step 2: Spastic Cerebral Palsy.
Spastic cerebral palsy, the most prevalent form at 70-80% of cases, is characterized by stiff muscles and movement difficulties.
Step 3: Intellectual Disability in Cerebral Palsy.
Intellectual disability may or may not accompany cerebral palsy, depending on the severity and nature of the brain injury.
Step 4: Movement and Posture Abnormalities.
All cerebral palsy types exhibit abnormal movement and posture due to damage to the brain's motor control centers.
Step 5: Non-Progressive Brain Damage.
Brain damage in cerebral palsy is non-progressive; once it occurs, it is permanent and does not worsen.
Step 6: Conclusion.
Consequently, the correct options are (A), (C), and (D).