Which of the following direct quotations is punctuated properly?
 a. "Way to go, Sean," the coach shouted. "That was a great run"!
 b. "Way to go, Sean," the coach shouted. "That was a great run!"
 c. "Way to go, Sean", the coach shouted. "That was a great run!"
 d. "Way to go, Sean", the coach shouted. "That was a great run"!