Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. choose the cost function that represents this scenario if x equals the number of nights laura has the movie. a. c(x) = 2.00x + 0.50 b. c(x) = 2.00 + 0.50x c. c(x) = 2.50x d. c(x) = (2.00 + 0.50)x