Final answer:
Corticosteroids are the likely medication to be prescribed for a patient with a newly diagnosed brain tumor complaining of a headache.
Step-by-step explanation:
The medication likely to be prescribed for a patient with a newly diagnosed brain tumor complaining of a headache is d) Corticosteroids. Corticosteroids, such as dexamethasone, are commonly used in the treatment of brain tumors to reduce inflammation and decrease swelling around the tumor, which can help alleviate the headache.