Which of the following is a reason for the disqualification of a director?

Engaging in insider dealing is a significant reason for the disqualification of a director because it demonstrates a serious breach of trust and legal obligations that directors have to their company and its shareholders. Insider dealing involves using confidential, price-sensitive information for personal gain, which is illegal and undermines the fairness of market operations. This behavior compromises the integrity of financial markets and can lead to substantial legal penalties, including the disqualification of the director from serving in such positions in the future. By engaging in such unethical practices, a director not only jeopardizes their own position but also harms the reputation and trust in the organization they represent.

In contrast, the other choices focus on positive aspects of a director's role. Meeting regulatory requirements consistently, maintaining good relations with stakeholders, and building a healthy corporate culture are all commendable practices that contribute to effective corporate governance and ethical standards. These actions typically enhance a company's reputation and stability, rather than leading to any disqualification.