Answer:
The correct option is 2. The scale factor is 2.
Step-by-step explanation:
The coordinates of preimage are A(1,2), T(0,0), K(4,1) and L(3,2).
The coordinates of image are A'(2,4), T'(0,0), K'(8,2) and L'(6,4).
If a figure dilated by scale factor k with center at origin then the rule of dilation is





Therefore the scale factor is 2 and the correct option is 2.