I need help with part (ii) and (iii). The answer is 5/4 (part ii).

a) [10 marks] Let ECU: y, z) : 333111 zj + 33213. Evaluate the line integral 0 from the point point A : (0; 07 0) to the point B : (1,1; 1) along the curve C i) when C is the straight line segment connecting A and B; ii) when C is the portion of the twisted cubic y = 3:2, 2 = :33 connecting A and B. iii) Is E conservative? Explain why