Brennac is negotiating four maintenance contracts. Which one includes variable consideration?Your answerAA lump sum of 60,000 payable in three equal instalments.BA lump sum of 50,000 and a bonus of 8,000 if machine availability exceeds 98%.CA lump sum of 45,000 with 30% paid on signature.DA lump sum of 40,000 and fixed travel costs of 1,500 per quarter, invoiced in addition under an agreed scale.SubmitHint