Suppose u, v, and projyu (the projection of u onto v) are all nonzero vectors in R" . Which of the following are always true? (It may help to draw some pictures.) (i) projyu is perpendicular to v (ii) projyu is perpendicular to u (ii) projyu has the same direction as v (iv) projyu has the same direction as u (v) u - projy u is perpendicular to v O A. only (i), (iv) and (v) O B. only (iii) and (v) O C. only (iii) O D. only (i)