SMTO Inc. had one class of stock outstanding. The one class of stock was owned 50 shares by Lana, 30 shares by Lana's mother, and 20 shares by Lana's grandmother. On December 31, 2012, SMTO Inc. redeemed 20 of Lana's 50 shares, and in exchange for the stock, SMTO Inc. distributed to Lana a building that had an adjusted basis to SMTO Inc. of $10,000 and a fair market value of $50,000. Assume that SMTO Inc.'s current earnings and profits were $200,000, there were no accumulated earnings and profits, and Lana's total basis in her stock before the redemption was $20,000. How much is Lana's basis in her remaining stock after the redemption, and what is her basis in the building?
a. Stock basis: $10,000; building basis: $10,000.
b. Stock basis: $10,000; building basis: $50,000.
c. Stock basis: $20,000; building basis: $10,000.
d. Stock basis: $20,000; building basis: $50,000.
e. None of the above.