Just Answers to 3, 4 please :)

Question 3 (1 point) To approximate (x - 4) dx using Riemann sum, the partition of 4 subintervals each length 2 are: O a) [1,3], [4,6], [7,9], [9,11] O b) [2,4], [4,6], [6,8], [8,10] O c) [1,3], [3,5], [5,7], [7,9] O d) [2,4], [5,7],[8,10], [11,13] O e) None of the above Question 4 (1 point) By choosing u; as the left endpoint of each subinterval [3,5], [5,7], [7,9], [9,11], the approximate fall (x - 4) dx using Riemann sum is O a) 154 O b) 304 O c) 220 O d) 112 O e) None of the above