Minimum Phase and All Pass Systems

Select all of the following statements that apply to a minimum phase system.

The frequency response magnitude for an all-pass system is exactly one for all frequencies.

Any system whose rational system function has no zeros on $|z| = 1$ can be expressed as the sum of a minimum phase and an all-pass system.

An inverse system exists that will correct the magnitude response of any system whose rational system function has no zeros on $|z| = 1$. (“correct” means that the cascade of the original and inverse systems has exactly unity magnitude response)