"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’m pretty sure the answer is balding hair.
Quiz lit it helped me especially this specific question
Answer:
after u done reading the previous one
Explanation: