Which of the following will receive the smallest monthly income benefit check if an annuity is annuitized?
a. Person A, age 65, with a $500,000 investment in the annuity
b. Person B, age 75, with a $400,000 investment in the annuity
c. Person C, age 60, with a $600,000 investment in the annuity
d. Person D, age 70, with a $450,000 investment in the annuity