On a coordinate plane, triangles a b c and d e f are shown. triangle a b c has points (4, 2), (7, 2), (4, 6). triangle d e f has points (negative 2, negative 1), (4, negative 3), and (4, negative 1).
how do the areas of triangle abc and def compare?

the area of △abc is 1 square unit less than the area of △def.
the area of △abc is equal to the area of △def.
the area of △abc is 1 square unit greater than the area of △def.
the area of △abc is 2 square units greater than the area of △def.