The following data has been collected about Keller Company's stockholders' equity accounts:

Common stock $10 par value 30,000 shares authorized and 15,000 shares issued, 2,000 shares outstanding	$150,000
Paid-in capital in excess of par value, common stock	60,000
Retained earnings	35,000
Treasury stock	25,000

Assuming the treasury shares were all purchased at the same price, the number of shares of treasury stock is:

a. 30,000.

b. 60,000.

c. 35,000.

d. 150,000.

e. 13,000.