Between these two, I now felt I had to choose. . . . To cast in my lot with Jekyll, was to die to those appetites which I had long secretly indulged and had of late begun to pamper. To cast it in with Hyde, was to die to a thousand interests and aspirations, and to become, at a blow and forever, despised and friendless. The bargain might appear unequal; but there was still another consideration in the scales; for while Jekyll would suffer smartingly in the fires of abstinence, Hyde would be not even conscious of all that he had lost. –The Strange Case of Dr. Jekyll and Mr. Hyde,
Robert Louis Stevenson

What type of conflict is Dr. Jekyll facing when he is forced to make a decision?

character vs. character
character vs. self
character vs. society
character vs. nature