A consulting firm, using statistical methods, provided a veterinary clinic with the cost equation C(x)equals0.00048(xminus400)cubedplus153 comma 600 100less than or equalsxless than or equals1,000 where C(x) is the cost in dollars for handling x cases per month. The average cost per case is given by Upper C overbar left parenthesis x right parenthesis equals StartFraction Upper C left parenthesis x right parenthesis Over x EndFraction . Complete parts (A) through (C). Question content area bottom Part 1 (A) Write the equation for the average cost function Upper C overbar. Upper C overbar left parenthesis x right parenthesisequals enter your response here (B) Graph Upper C overbar on a calculator. Choose the correct graph below. A. A coordinate system has a horizontal axis labeled from 100 to 1000 in increments of 100 and a vertical axis labeled from 0 to 1600 in increments of 100. From left to right, a curve rises steeply passing through (100, 190), (200, 850), and (300, 1090), and then falls shallowly. All coordinates are approximate. B. A coordinate system has a horizontal axis labeled from 100 to 1000 in increments of 100 and a vertical axis labeled from 0 to 1600 in increments of 100. From left to right, a curve rises steeply passing through (200, 390), (300, 630), and (400, 760), and then falls shallowly. All coordinates are approximate. C. A coordinate system has a horizontal axis labeled from 100 to 1000 in increments of 100 and a vertical axis labeled