Can yall please answer this multiple choice question

24. . You look at yourself in a convex mirror. Your image is A. Upright. B. Inverted. C. It's impossible to tell without knowing how far you are from the mirror and its focal length.21. . A virtual image of an object can be formed by A. A converging lens B. A diverging lens C. A plane mirror D. A concave mirror17. . Is there an angle of incidence between 0. and 90. such that all of the light will be reflected? A. Yes, at an angle greater than 50 B. Yes, at an angle less than 50. C. No