BigBagets is a bagelstand near the local park. To plan for the future, BigBagels wants to determine its cost behavior patterns. It has the following information available about its operating costs and the number of bagels served Month Number of bagels Total operating costs January 3,400 $5,980 February 7,000 $6,400 March 4,000 $5,000 April 6,900 $6,330 8,000 $7,000 June 7.250 $6,575 May Using the high-low method, the monthly operating costs if the company sells 12,000 bagels in a month are OA $5,000 B. $3.000 OG $9.000 OD. $20,000