What Are the Advantages of a Rights Offer Over a Cash

What are the advantages of a rights offer over a cash offer when issuing new shares?

A) It enables a firm to attract new investors from outside its current owners.
B) It enables a firm to issue equity without imposing a loss on current shareholders.
C) It enables a firm to access new sources of capital to fund its growth.
D) It enables a firm to attract new investors by offering them a windfall from the difference between the price of the issued stock and the price of stock after the offering.