Visual Cable TV Company, an accrual basis taxpayer, allows its customers to pay by the year in advance ($350 per year), or two years in advance ($680). In September 2023, the company collected the following amounts: $10,500 for one year in advance and $8,160 for two years in advance. What is the total amount collected by the company in September 2023?
A) $18,660
B) $18,660.00
C) $18660
D) $18660.00