Which sentence is correctly punctuated?

• A. "Let's eat grandma!"
• B. "Lets eat, grandma!"
• C. "Let's eat, grandma!"
• D. "Lets eat grandma!"

Answer: (C)

Punctuation marks signal who is being addressed and how to read the sentence. The sentence with the contraction used correctly needs an apostrophe in Lets, since it’s a contraction of let us. When you talk directly to someone, you set off that person’s name with a comma, so addressing grandma must be shown with a comma after the verb. This makes clear you’re inviting grandma to join in eating, not describing the act of eating grandma. The exclamation mark at the end adds the enthusiastic tone of a direct command or invitation. The other options fail because either the apostrophe is missing in Lets, or the comma after eat is missing, which can lead to a misreading of the sentence.