Recall that two figures are similar if their corresponding angles are congruent, and the ratios of the lengths of their corresponding sides are equal.
Now, if we increase the length of one side of figure A by 2 units, then, the result cannot be similar to figure A.
Also, if we change the interior angles, the result cannot be similar to figure A.
Now, we know that translations, dilations are transformations that transform a figure into a similar figure.
Also, a translation of 4 units down and 6 units left, followed by a dilation by a scale factor of 3 transforms figure A into a similar figure.
Answer: Option C.