Which sentence is punctuated correctly? A. "Sure," Kelly replied, "That would be great." B. Paul asked, "do you want to help on this project, Kelly?" C. "I brush my teeth for two minutes," Carl said, "at least twice a day." D. "when are we leaving?" Henry asked.
In A, "T" of that should be in lower case
In B, "D" of Do should be in upper case
And in D, "W" of when should be written in upper case
So your answer is C. "I brush my teeth for two minutes," Carl said, "at least twice a day."