Kaitlyn was earning $66,000 a year as a sales representative for a firm. She quit her job to open her own business. She set up her business in her a building she owns and had previously been renting to Mariana for an annual rent of $15,000. During the year, Kaitlyn hired an assistant at a salary of $44,000 a year, and she spent $120,000 on materials and $15,000 on utilities. She earned total revenue of $450,000 during the year. Refer to the data above. Kate's implicit costs amount to: Question 4 options: 66,000 $81,000 185,000 S141,000