Elias agreed to build a wooden barn for his neighbour, Peter, for the price of $60,000. Midway through the project, Elias discovered that the cost of the beams had increased by $7000. He approached Peter asking if Peter would pay this additional fee. Peter replied that he would split the difference and pay only an additional $3500. Elias finished the project and Peter paid him $60,000. Which of the following statements correctly describes Elias's current legal position? Select one: a. Elias cannot successfully sue for the outstanding $3500 because the promise to pay more was not reduced to writing. O b. Elias can successfully sue for the outstanding $3500 since Peter verbally agreed to pay that sum O c. Elias can successfully sue for the outstanding $3500 because he completed his end of the bargain. O d. Elias cannot successfully sue for the outstanding $3500 since no new consideration was offered in exchange for the promise of additional cash