Triangle DEF is shown on the coordinate grid. Triangle DEF is dilated with the origin as the center of dilation using the rule (x, y) → (2.5x, 2.5y) to create triangle D'E'F'.

Which of the following statements is true?
a
Triangle D'E'F' is smaller than triangle DEF, because the scale factor is less than 1.
b
Triangle D'E'F' is larger than triangle DEF, because the scale factor is less than 1.
c
Triangle D'E'F' is larger than triangle DEF, because the scale factor is greater than 1.
d
Triangle D'E'F' is smaller than triangle DEF, because the scale factor is greater than 1.