Which symptoms are characteristic of a grand mal seizure?

A: episodes of altered awareness, such as staring blankly.

B: Loss of consciousness, stiffening of limbs, and rhythmic jerking movements.

C: muscle weakness and collapse without loss of consciousness.

D: Isolated twitching of facial muscles.

Correct answer is B. Grand mal seizures involve both tonic (stiffening) and clonic (jerking) phases, along with loss of consciousness .