What is typically involved in the policy adoption stage?

What is typically involved in the policy adoption stage?
a. a full-on media campaign to ensure public support for the chosen policy proposal
b. action on a preferred policy alternative for which the proponents of action think they can win approval, even though it does not provide all they might like
c. the creation of a commission with the sole responsibility of ensuring the policy's successful enactment
d. selection from a number of full-blown policy alternatives
Answer: b

stage?