Answer:
The answer that is correctly punctuated is:
"If you take good care of your car," said Grandpa Leo, "it will take good care of you."
Explanation:
When we use direct speech we must pay attention to the placement of commas. They are supposed to separate the writer's or narrator's words from the character's words.
If the narrator's words come before the quote, the comma should placed before the quotation mark that starts the quote. If the narrator's words come after the quote, the comma should be place right before the quotation mark that ends the quote. Both things happen in the passage we are analyzing here. Therefore, we will have one comma before the second quotation mark, and another one before the third quotation mark.
"If you take good care of your car," said Grandpa Leo, "it will take good care of you."
