Crystal Soda produces lemon-lime soda. It incurred the following costs during the period (in thousands) Lemon Syrup $16,000 Delivery truck driver's wages $285 Freight-in for raw materials $1,300 Plant utilities $1,250 Assembly line wages $7.900 Plant janitor's wages $2.500 Customer hotline $220 Sales commissions $450 Rent for factory $1,490 Factory manager's salary $4020 What is the total amount of overhead costs for Crystal Soda for the period? O A $29,960 B. $15.670 C. $9.260 D. $9.545