I would say A because the roar of the crowd cant "rumble" over the stadium.
"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}
<span>
a. You can either talk to the manager about your problem or writing a letter to the president of the company.
- here the correct form would be "or write a letter" - so the whole sentence is incorrect
b. Anyone who is going to work here will have to be athletic, an intelligent person, and have a good sense of humor.
- yes, this one is correct! it doesn't have any mistakes AND it's a parallel construction.
c. Most people enjoy ice cream and the plant grows. - this is not incorrect, but it's a bit weird. plus, it's not a parallel construction
d. The painter wore glasses, gloves, and boots. - this is correct, but it's not a parallel construction. </span>
