Carleton Corporation distributes investment securities to each of its individual shareholders. The total basis of these securities is $60,000 and the total fair market value of them is $90,000. However, these securities were used as collateral for a loan to the corporation and $30,000 of that loan still encumbers the securities. The shareholders agree to assume this loan proportionally.

a. How much is the dividend income to the shareholders?

b. How much is the shareholders' total basis in the securities received?