Indicate whether each of the following descriptions matches Cdc42 (C), Rac (R), or Rho (H) from the Rho family of monomeric GTPases. Your answer would be a three-letter string composed of letters C, R, and H only, e.g. HRR.
( ) It activates formin.
( ) It inhibits myosin II activity.
( ) When constitutively active, it induces the formation of many prominent stress fibers.