A "popular press source" in general refers to any news publication, either on paper or online, that has a wide circulation and is popular. Although this doesn't always mean that it is reputable.
Start with your 2 main ideas
Answer: A
Explanation:
Well, you wouldn't say "Let's eat Grandma"
But you would write "Let's eat, Grandma!"
When you talk, you pause, right?
Try reading out loud a sentence and add a comma when it pauses, a period when it ends, and a semi-colon when the text gets too long but you have more to say; like I do for instance.
The tree whispered in the wind
The water gargled like a baby