ABC has vertices of A(0, 0), B(–4, 0), and C(–2, 4). The coordinates of each vertex are multiplied by 3 to create AEF. Determine if ABC is similar to AEF. Explain your answer.
A. No, they are not similar because the corresponding angles are not congruent.
B. No, they are not similar because the corresponding sides are not proportional.
C. Yes, they are similar with a scale factor of 1:3.
D. Yes, they are similar with a scale factor of 0:3

Question

ABC has vertices of A(0, 0), B(–4, 0), and C(–2, 4). The coordinates of each vertex are multiplied by 3 to create AEF. Determine if ABC is similar to AEF. Explain your answer.        
A. No, they are not similar because the corresponding angles are not congruent. 
B. No, they are not similar because the corresponding sides are not proportional. 
C. Yes, they are similar with a scale factor of 1:3. 
D. Yes, they are similar with a scale factor of 0:3