To fill all fields necessarily. If you will skip something, questionnaire accepted will not be.
Personal information is needed for authentication of participants in the case of reaching the final and winnings prize. Personal information in questionnaires published and used for other aims will not be. Confidentiality is guaranteed.
Personal information is needed for authentication of participants in the case of reaching the final and winnings prize. Personal information in questionnaires published and used for other aims will not be. Confidentiality is guaranteed.