Answer: Person vs. Self
In this type of conflict, a character finds him or herself battling between two competing desires or selves, typically one good and one evil. You won't get a more obvious example than The Call of the Wild, in which the protagonist (in this case, a dog) is torn between a domesticated self and a wild self
Explanation:
"I" is in regards to yourself, you and any humans name are proper nouns that you go by. "a" is not a proper noun it is describing the quantity or the subject of the matter, Ex- [I] love it when [a] cool summer day takes place in my area.
{Bad sentence, sorry}
The author of the text that contains this quote appeals to the reader's sense of logic by quoting an authority/expert on the matter. Taking into consideration that expert's opinions, in argument, are as close to a fact as you can get without actually using a fact, this shows us how your best answer here is option B.