Which of the following statement(s) is(are) correct? 1. All else equal, the EAR (effective annual rate) increase as the compounding horizon shorten II. EAR and APR (annual percentage rate) is equal to each other if the number of compounding period is 1. III. The difference between EAR and APR increase as the number of compounding periods decrease. IV. Both APR and EAR are nominal interest rates