Question: To screw in your supports for your baby gate,

  Options: 
 A. Screw one board to each side of the wall support, being sure to keep the edges aligned. When complete, you will have two tracks(each being in the shape of a "U").
 B. Screw one board to each side of the wall support, being sure to keep the edges aligned. When complete, you will have two tracks(each being in the shape of a "P").
Answer: A