Which statement correctly describes the relationship between △abc and △a′b′c′ ? a . △abc is congruent to △a′b′c′ because you can map △abc to △a′b′c′ using a reflection across the y-axis, which is a rigid motion. b . △abc is not congruent to △a′b′c′ because there is no sequence of rigid motions that maps △abc to △a′b′c′. c . △abc is congruent to △a′b′c′ because you can map △abc to △a′b′c′ using a translation 6 units to the left, which is a rigid motion. d . △abc is congruent to △a′b′c′ because you can map △abc to △a′b′c′ using a translation 6 units to the right, which is a rigid motion.