Janelle owns her own dog daycare. She gave up a job as a nurse where she earned $50,000. To run her dog daycare, she rents a building and yard for $20,000 a year, buys dog food and treats costing $10,000 a year, and has other miscellaneous expenses costing $6,500. She earns $100,000 in revenue.What are Janelle's implicit costs, explicit costs and economic profit?

A)implicit costs = $86,500 ; Explicit costs = $50,000 ; Economic profit = - $36,500

B)Implicit costs = $50,000 ; Explicit costs = $36,500 ; Economic profit = $13,500

C)Implicit costs = $36,500; Explicit costs = $86,500 ; Economic profit = -$23,000

D)Implicit costs = $36,500 ; Explicit costs = $50,000 ; Economic profit = $13,500