27. DORIS PURCHASED A NEW AUTOMOBILE ON CREDIT WHEN SHE WAS SIXTEEN YEARS OLD. TWO DAYS AFTER HER NINETEENTH BIRTHDAY SHE SOUGHT TO RESCIND HER OBLIGATION TO MAKE FURTHER PAYMENTS. ASSUMING THAT EIGHTEEN IS THE AGE OF MAJORITY, THE CAR DEALER WOULD : (A) BE ABLE TO ENFORCE HER OBLIGATION SINCE DORIS HAD RATIFIED THE CONTRACT (B) NOT BE ABLE TO ENFORCE HER OBLIGATION SINCE DORIS HAD NOT RATIFIED THE CONTRACT (C) BE ABLE TO ENFORCE HER OBLIGATION SINCE THE CAR DEALER WAS A COMPETENT PARTY AT ALL TIMES (D) NOT BE ABLE TO ENFORCE HER OBLIGATION SINCE DORIS DID NOT RATIFY THE CONTRACT PRIOR TO HER EIGHTEENTH BIRTHDAY