Checkmark and cross. Icon of true. Check answer. Wrong, correct, incorrect and right symbols. x or ok. Green yes, red dont. Positive and bad sign. Button for quiz. Circle with agree and error. Vector.. Checkmark and cross. Icon of true. Check answer. Wrong, correct, incorrect and right symbols. x or ok. Green yes, red dont. Positive and bad sign. Button for quiz. Circle with agree and error. Vector