In the context of self$-$management, what is "bootleg reinforcement"?

Question $34$ options:

a$)$

Access to the specified reward or to equally reinforcing items or events without meeting the response requirements of the contingency

b$)$

Access to a less reinforcing item or event without meeting the response requirements of the contingency

c$)$

Access to the specified reward or to equally reinforcing items or events after meeting the response requirements of the contingency

d$)$

Access to a less reinforcing item or event after meeting the response requirements of the contingency