"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}
According to Boccaccio, some people believed the sins of some to be the cause of the plague. They believed that God punished them for committing sins by giving them the plague
Hi!
If I'm not wrong, the answer should be the last option.
Richard isn’t a very bright man
