Light rays from a ray-box travel through three lenses positioned at $1$, $2$ and $3$. What kind of lens is fitted at each position?
- Aposition $1$: converging; position $2$: converging; position $3$: converging
- Bposition $1$: converging; position $2$: converging; position $3$: diverging
- Cposition $1$: diverging; position $2$: converging; position $3$: diverging
- Dposition $1$: diverging; position $2$: diverging; position $3$: converging