mark is graduating from college in six months, but he will need a loan in the amount of $7,038 for his last semester. he may either receive an unsubsidized stafford loan with an interest rate of 6.8%, compounded monthly, or his parents may obtain a plus loan with an interest rate of 7.8%, compounded monthly. the stafford loan has a grace period of six months from the time of graduation. which loan will have a higher balance at the time of repayment and by how much? (4 points) the plus loan has a higher balance by $214.80. the plus loan has a higher balance by $690.26. the stafford loan has a higher balance by $184.50. the stafford loan has a higher balance by $259.74.