According to the passage, we can tell that Erroll Knight is a player for ______.

A．their jerseys are exquisitely designed
B．it is a rule of their colleges
C．they are very proud of their sports team
D．it is a form of demonstration of the value being the representative of their schools

A．Popping the jersey is not in vogue any more.
B．The victory of Donald Brown's team is out of expectation.
C．N.B.A and college basketball are much the same.
D．People pop their collars because they are dirty.