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) n ≥ 8
b) n > 8 and n < 12
c) 8 ≤ n ≤ 12
d) n ≤ 12