A 50 mL of $$0.1\,\mathrm{M}$$ acetic acid solution is taken in a beaker and two wires are dipped in it as shown in following figure.

When electric supply is switched on, the bulb glows. To this solution, distilled water is added slowly till the volume doubles. During the addition of water, the intensity of the bulb

A

remains unchanged

B

goes on decreasing

C

goes on increasing

D

suddenly becomes zero