Please solve all the blanks
Extracted text: Consider the line with equation OP + td where P = (1, 1,0) and d = (-1, 2, 1). Notice that P is on the line. Let Q = (1, 2, -1). Let a denote the projection of PQ onto the line. Find . X CLOSE elect an option (1,1,0) (-1,2,1) (-1,2, 1) (0,1,-1)-(1,1,0) (1, 1,0) (0,1,-1)-(-1,2,1) (–1, 2, 1) 6. I| || || ||