In the figure shown, the measures of all angles are equal, and AB = EF. There are two solid triangles, triangle ABC and triangle DEF. What type of triangle is △ABC? What type of triangle is △EFG? Select all that apply. A. △ABC: right; △EFG: right B. △ABC: equilateral; △EFG: equilateral C. △ABC: isosceles; △EFG: isosceles D. △ABC: scalene; △EFG: scalene E. none of the above