The final cost in dollars to buy robotic kits for the Science Club can be found using the function c=49.85n+7.95 , where n is the number of kits purchased. They want to purchase at least 8 kits but not more than 12 kits. What is the domain of the function for this situation?
a. {8,9,10,11,12}
b. 406.75,456.60,506.45,556.30, 606.15
c. 0 < n < 12
d. 0 < c < 606.15