Sound Design sels ts computer scekers for $115 per aiade t is $70 ser set of seken. Fsad coss ve 545,003 per month for volumes up to 2, 300 sets of sceskens Above 2,300 ses, monthiy faed cots ere Sound Design sells ts computer speakers for $115 per set Its he budgeted oeraling income (los ta sales level of 2,900 sets of speakers per mon O A Operating o of $32,500 O C Operating income of $45,500 Operating income of $130 800 O D Operating neome at S 170,500