When you have a quoted rate given as an APR compounded per month on an account then:

A$)$ If you divide the APR by $12$ you will have the EMR

B$)$ If you take $1$ plus the APR to the ${12}^{mh}$ root, you will have the EMR.

C$)$ If you want to know the actual balance on the account at the end of one year, take $1$ plus the APR and multiply by the initial balance.

D$)$ You can never recover the EAR as the APR is not the EAR.

E$)$ None of these statements are true.