O d. A (t) = 100 + 25t O e. A(t) = 25 + 100t Clear my choice Using the functions in question 8 and 9, describe what happens to the total cost as 't' increases. O a. The total cost tends to 100, as t increases O b. The total cost tends to infinity in an exponential fashion, as t increases O c. The total cost tends to infinity in a linear fashion, as t increases O d. The total cost tends to 25, as t increases O e. The total cost tends to 0, as t increases Clear my choice Using the functions in question 8 and 9, describe what happens to the average cost per hour as 't' increases. O a. The average cost tends to 0, as t increases O b. The average cost tends to 100, as t increases tion O c. The average cost tends to infinity in a linear fashion, as t increases