Final answer:
(B) Baclofen is the medication that best addresses muscle spasticity and rigidity in a client with Cerebral Palsy, acting as a muscle relaxer and antispastic agent.
Step-by-step explanation:
A student wondering about medications for muscle tone discomfort in a client with Cerebral Palsy (CP), characterized by muscle spasticity and rigidity, would find that the correct medication is Baclofen. This medication is known to alleviate conditions of hypertonia, such as rigidity and spasticity, by acting as a muscle relaxer and an antispastic agent.
While Ibuprofen, Aspirin, and Paracetamol can provide pain relief, they do not specifically target the neuromuscular issues associated with CP. On the other hand, Baclofen directly addresses these symptoms by inhibiting the reflexes at the spinal level, which can reduce abnormal muscle contractions and improve motor function.