"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}
I feel like the answer is A.
Answer:
In the sentence, the phrase of a cave bear functions as an adverb prepositional phrase. An adverb prepositional phrase modifies a verb, adjective, or adverb. It usually tells when, where, how, why, or to what extent (how many, how much, how long, or how far), and under what condition.
Explanation:
B. The passge doesn't say anything about how the snow makes her feel.