A graduate degree in policymaking is necessary to serve in the presidential cabinet. In addition, every member of the cabinet must pass a security clearance. No person with a felony can pass a security clearance. Rick holds a graduate degree in policymaking, but he has a conviction for driving under the influence. Ttherefore, Rick cannot serve in the cabinet. The argument's conclusion follows logically if which one of the following is assumed? ['Holding a graduate degree is less important than having a felony conviction.', 'Driving under the influence is a felony.', 'Anyone without a felony conviction can pass a security clearance.', "Rick's conviction for drunk driving calls his character in question."]