Pentagon G was dilated from the origin by a scale factor of 1/2 to create Pentagon G′. Which statement explains why the pentagons are similar? A. Dilations preserve side length; therefore, the corresponding sides of pentagons G and G′ are congruent.

B. Dilations preserve betweenness of points; therefore, the corresponding sides of pentagons G and G′ are proportional.

C. Dilations preserve orientation; therefore, the corresponding angles of pentagons G and G′ are congruent.

D. Dilations preserve collinearity; therefore, the corresponding angles of pentagons G and G′ are congruent.