In 1931, President Hoover was paid a salary of 75,000. In 2023, President Biden was paid 408,000. The Cπ was 15.2 in 1931 and 304.7 in 2023. Which of the following statements is correct?
1) The salary of President Biden in 2023 was higher than that of President Hoover in 1931.
2) The Cπ in 2023 was higher than that in 1931.
3) The salary of President Biden in 2023 was lower than that of President Hoover in 1931.
4) The Cπ in 1931 was higher than that in 2023.