11. AA Company produces and sells three products Sales TVC Contribution margin Traceable fixed cost Common fixed cost Operating income $20,000 12,000 8,000 3,000 2,000 $3,000 $30,000 $8,000 16.000 $5,000 $14,000 $3,000 $6,000$2,000 $3,000 $1.800 $5,000 $800) A decision by AA Co. to discontinue Product C would result in what monthly increase (decrease) in AA Co.'s operating income? a) $800 b) $1,000 c) ($1,000) d) ($1,800) e) None of the above