Let T(n) = 1/2*n2 + 3*n. Which of the following statements are true? (Choose all that apply.) Select one or more: 0 a. Tn): Q(n) o b. T(n) E 12 (n) c. T(n) E (n? d. T(n) E O(n) Based on the definitions of o, o, and 12, determine whether the following assertions are true or false or none of these. (a) 2n3 + 5n + 1 O(n2 Choose... (b) n*n* (n + 1) +7*n*ne O(n? Choose... (C) 2*n* (n-1) (n*log n) Choose... (d) 4* (n* n) + 3* n = O(n2 Choose