SHOW THE WORK PLEASE

[MUST SHOW WORK] Consider an economy where the Consumer Price Index (CPI) was 150 at the end of 2021 and 180 at the end of 2022. The inflation rate for 2022 was? Select one: O A. 50 percent. O B. 20 percent. O C. 65 percent. O D. 17 percent. O E. None of the choices are correct