When Asking How Much More Is a Preferred Share Worth

When asking how much more is a preferred share worth than a common share, the answer depends upon which of the following?

A) The health of the company- preferred shares are worth much more than common shares if the company is very healthy.
B) The stage of the company - preferred shares are worth much more than common shares at early stages of the company's life.
C) Neither of the above are considerations.
D) Both of the above are considerations.