Consider a standard linear dice net where four faces are arranged vertically in a single column numbered consecutively from top to bottom as $1,2,3,$ and $4$, while two side faces numbered $5$ and $6$ project out horizontally to the left of face $2$ and right of face $3$ respectively. When this net is folded to form a cube, which number will be opposite to $2$?

1. A
   4
2. B
   5
3. C
   1
4. D
   3