Choice A rationale:

Cerebral palsy is not solely caused by genetic factors.

While genetic factors can contribute, cerebral palsy is a complex condition with various causes, including prenatal, perinatal, and postnatal factors.

Choice B rationale:

Ataxic cerebral palsy primarily affects balance and coordination.

This statement is correct, but it is not one of the options you can select.

Choice C rationale:

Premature birth is a perinatal factor associated with cerebral palsy.

This is correct, as premature birth is a risk factor for cerebral palsy.

Choice D rationale:

Spastic cerebral palsy is not characterized by involuntary movements.

It is characterized by muscle stiffness and spasticity.

Choice E rationale:

Cerebral palsy can result from postnatal factors like infections and traumatic brain injury.

This statement is correct, as cerebral palsy can have both prenatal and postnatal causes.

Infections and traumatic brain injury are examples of postnatal factors that can lead to cerebral palsy.