I need help with this question. Please indicate the correct answers and it's regarding Canadian Business Law in Alberta

Which of the following practices would be a breach of fiduciary duty? 1) A minor shareholder of ABC Ltd., a trucking corporation whose shares are listed on the TSX, is working as an employee for ABC Ltd.'s competitor, J'N'L Trucking. 2) The directors of the corporation, contrary to the request by the shareholders, refused to declare dividends. 3) A minor shareholder of a corporation voted in favour of an acquisition by the corporation at the annual general meeting because he secretly had an interest in the corporation being purchased. 4) A partner in a firm learned of a business forced to sell some heavy equipment. Although the partnership could have used the equipment, he bought and sold it at a substantial profit before the partnership was given a chance to buy it. 5) A partner of a firm that sold hospital supplies had, without the knowledge or consent of his partners, started a competing business that he ran from his own home. 6) An employer charged his employees for parking after supplying it for free for years