Who Is Most Likely to Gain as a Result of Unanticipated

Who is most likely to gain as a result of unanticipated inflation?

A) Roberta who invested $5,000 in real estate before the inflation began.
B) Hector who invested $10,000 in government bonds that pay a fixed rate of interest of 5.3 percent.
C) James who just signed a two-year consulting contract that does not include a cost of living adjustment.
D) Rebecca who put $2,000 in her savings account.