Mandy is the sheriff of Notreal, Texas. Oliver robs a gas station in Notreal and a $500 reward is offered for anyone who turns him in. If Mandy finds and arrests Oliver, with respect to the reward, she can a. not collect it because she had a preexisting duty to capture Oliver. b. not collect it because it would be unconscionable. c. collect it. d. not collect it because it is not legally sufficient consideration.