Final answer:
The author's purpose in the given passage is to persuade readers to ask their doctor about Painol as a headache remedy.
Step-by-step explanation:
The author's purpose in the given passage is b) to persuade readers to ask their doctor about Painol as a headache remedy. The passage emphasizes that Painol is the best new medicine to make headaches go away by blocking the messages that cause pain. The author's intent is to convince readers to inquire about Painol as a solution for their headaches.