Cardi O went to a party and drank alcohol. She estimated that her blood alcoholcontent (BAC) was 0.16. BAC decreases by 25% every hour.a. Is this situation describing a linear or exponential decrease?b. Write several sentences to convince me of your answer.Write a functiondescribing this situation.c. Sketch the graph of the function and label the y-intercept (Hint: It mighthelp to start by making a table.)d. Cardi O knows a safe driving level for someone of her weight is 0.04. Howlong does she need to hang out with her friends (without drinking anymore alcohol) before it is safe for her to drive? Show or explain your method for finding this solution.