You are getting ready to open your pizza restaurant. You are the managerial (cost) accountant.Select the most affordable delivery company based on the number of pizzas you may need delivered.A DeliveryPay $9 per pizza delivered.Do changes in the number of cost driver units affect total variable costs but do not affect total fixed cosyes because it is a fixed cost and do we canYes or No? Why?B DeliveryPay $1700 per month. For up to 320 pizzas delivered those pizzas are deliverd free, but $5 is cha