In an open economy, how many bikes will this country export? 

When a market has barriers to entry,

A) then in the long run it is possible for the firms to incur economic losses. B) then in the long run the only possible outcome for the firms is zero economic profit. C) then in the long run it might be possible for the firms to make economic profits. D) oligopolies cannot be created. E) the HHI almost always falls below 1,000.

Daisy incurs $7,200 per month in fixed costs operating her floral shop. She pays her employees $9.00 per hour and has three assistants, each working 120 hours per month. Her other variable costs are $800 per month. What are Daisy's total variable costs and total costs each month?

a. Total variable costs are $800; total costs are $8,000. b. Total variable costs are $800; total costs are $11,240. c. Total variable costs are $3,240; total costs are $11,240. d. Total variable costs are $4,040; total costs are $11,240.