The manufacturing of a new smart dog collar costs y = 0.25x +4,800 and the revenue from sales of the new smart collar is y =1.45x where y is measured in dollars and X is the number of collars. Find the break-even point for the smart collars. A. 4,000 collars sold at a cost of $5,800 b. 2,833 collars sold at a cost of $4,094 c. 5760 collars sold at a cost of $8,352 d. 5,800 collars sold at a cost of $4,000