Assume that the inflation rate in 2019 was about 16.00%, while the 1-yr Treasury bill issued at the start of that year offered a nominal rate of 10.00%. Which of the following statements is correct?

Group of answer choices

Investors in these bonds decreased their purchasing power by 5.17%.

Purchasing power of money stayed the same over time.

The true increase in purchasing power that resulted from investing in these bonds was 10.00%.

Investors in these bonds increased their purchasing power by 16.00%.