Aclothing store that has opened a credit account with judy, a college student, gets judy's older sister alice to agree to pay the amount owed on the account if judy fails to do so. which of the following statements is true for this scenario? a. judy is the obligor and only she is contractually liable to the clothing store. b. alice is the guarantor and she is primarily liable to make the payments. c. judy is the obligor and her promise to the clothing store is conditional. d. alice is the guarantor and alice's contract must be in writing to be enforceable