The article says:

But pickleball is its own sport. You hit the ball with a paddle instead of a racket. The ball is plastic and has holes in it. And there's a non-volley zone (NVZ). That's a space on either side of the net.
Which words from the passage help you understand the meaning of the word paddle?
A.has holes in it
B.on either side
C.hit the ball
D.its own sport