Java multiple choice????Java multiple choice????Java multiple choice????

14. For large values of n which statement is true? a. 2n3 +4n2 +17n behaves like n3 b. 2n3 4n2 behaves like n3 c. 2n3 behaves like n3 d. all of the above 15. For large values of n which statement is true? a. (n2 + n)/2 behaves like n2 b. (n2+ n)/2 behaves like n c. (n2n)/2 behaves like n/2 d. all of the above 16. Computing the sum of the first n integers using the formulat n * (n 1)/2 has a growth rate a. independent of n b. of n2 c. of n2+ n d. all of the above 17. To properly evaluate the effectiveness of an algorithm, you need to determine a. b. c. d. the average case the best case the worst case all of the above 18. When searching an array for the smallest value, which case is most useful? a. the average case b. the best case C. the worst case d. none of the above