If only 4 bulbs, it looks to me that there is a short circuit in the red loop from battery to B to C and no bulb will light up.
Might be question in error or 5th bulb got “blanko” by mistake (likely the latter)
For interest and discussion, if 5th bulb is where I marked so there will not be any short circuit, answer is B*.
open A: 3 bulbs lighted up
open B: 2 bulbs lighted up *
open C: 4 bulbs lighted up
open D: 3 bulbs lighted up