Which of the following resulted from this sale of treasury stock?

A firm was holding 4,000 shares of its $3 par value common stock in the treasury. The stock had been purchased three years ago for $22 per share. Yesterday, the firm sold 1,500 shares of the treasury stock for $30 per share. Which of the following resulted from this sale of treasury stock?

a. Retained Earnings decreased by $45,000.

b. Treasury Stock decreased by $33,000.

c. Paid-in Capital from Treasury Stock Transactions decreased by $12,000.

d. There was a Gain on Sale of Treasury Stock of $12,000.

e. None of the above.