The character that provides an obstacle to the protagonist is the C. antagonist.
Protagonist is the main character, and usually a good guy, whereas antagonists are usually bad. For example, Harry Potter is the protagonist, and Voldemort is the antagonist.
It would be the first option.
Answer:
a person who drinks alcohol is called a drunkard
in other words a alcoholic
Explanation:
mark as branlinest hope it helped;)