The only receptors to make direct contact with brain interneurons rather than afferent neurons are ...

The only receptors to make direct contact with brain interneurons rather than afferent neurons are
 
  a. olfactory receptors.
  b. taste receptors.
  c. chemoreceptors.
  d. mechanoreceptors.
  e. photoreceptors.

Question 2

Taste buds are
 
  a. really just modified sensilla.
  b. found only on the tongue.
  c. collections of papilla that each respond to different stimuli.
  d. small capsules of cells, each with a pore at the top though which sensory hairs project and
  interact with environmental molecules.
  e. EACH able to respond to sweet, sour, salty, bitter, and savory (umami) stimuli.