The tissue which nourish microspores is

Answer: Option A

The tissue which nourishes microspores is Tapetum.
Tapetum is the innermost cell layer in the anther.
The tapetum is a specialized layer of nutritive cells found within the anther, of flowering plants, where it is located between the sporogenous tissue and the anther wall.
Tapetum is important for the nutrition and development of pollen grains, as well as a source of precursors for the pollen coat.