Demand Data	Cost Data
(1) Price	(2) Price	(3) Quantity	Total Output	Total Cost
$50	$35	2	2	$45
45	30	3	3	55
40	25	4	4	70
35	20	5	5	90
30	15	6	6	115
25	10	7	7	145
20	5	8	8	180

Suppose that entry of firms into the industry changes this firm's demand schedule from columns 1 and 3 to columns 2 and 3. Maximum economic profit will decrease to

• $25.
• $35.
• zero.

• $70.