Which halogen does not show bleaching properties?

 Fluorine and iodine do not show bleaching action. Most chlorine is a good reducing agent while moist bromine bleach slowly. Chlorine reacts with water to form $\mathrm{HCl}$ and nascent oxygen. The nascent oxygen produced causes the bleaching action of the halogen. In the case of bromine, it bleaches slowly while fluorine and iodine do not show bleaching properties.

Hence, the correct answer is option D) lodine A) Fluorine