When white light goes into a blue filter, blue light comes out. how did the blue get into the light?

In spectrum, there is no white colour light. When all colour light (including blue) come together, it appear as white. Now, when light fall on blue filter, then filter material absorbs all colours except blue. So finally blue colour left.

It should be d if not then c

Ibelieve the answer is either b or c, but i'm leaning more towards c.hope my answer has you : )