Cephalization refers to (Multiple Choice)

Cephalization refers to
  a. a type of symmetry.
  b. a type of segmentation characteristic of lower
  forms of life.
  c. a group of protective cells found in the tentacles
  of a polyp.
  d. a transitional state in the life cycle of a jellyfish.
  e. none of these.

Question 2

Which of the following is incorrect concerning a
  nerve net? It
  a. is found in animals with radial symmetry.
  b. is responsive to information arriving from any
  direction.
  c. shows evolution of cephalization.
  d. controls cells with contractile properties.
  e. receives information from sensory cells.