What is the answer to this question?

Choose the option that best completes the statement. 1. A figure has symmetry with respect to a point if for every point Q of the figure a partner point Q'exists such that Pis the of QQ' 2. A figure has symmetry with respect to a plane X if for every point K of the figure a partner point K'exists such that X is the of KK. 3. A figure has symmetry with respect to a line m if for every point P of the figure a partner point P'exists such that m is the of PP'