Choose the correctly punctuated sentence. 
 -"Hurrah," shouted the boys as they saw the circus parade approaching
 -Hurrah, shouted the boys as they saw the circus parade approaching. 
 -"Hurrah!" shouted the boys as they saw the circus parade approaching. 
 -"Hurrah," shouted the boys, "as they saw the circus parade approaching." 
 -The boys shouted hurrah as they saw the circus parade approaching.