Final answer:
The bond that unites military professionals and is tied to mutual accountability and self-regulation is Honor. This sense of Honor is cultivated through shared experiences and adherence to military ethos, leading to solidarity and mutual support within the ranks.
Step-by-step explanation:
The common bond all military professionals share based on the mutual accountability that comes with self-regulation is C) Honor. In the military setting, new members undergo a transformation through experiences like basic training, where they discard their prior identity and adopt one that aligns with military values. This process fosters a deeply rooted bond among soldiers, characterized by their shared adherence to rules, structured schedules, and rigorous standards of conduct and discipline, such as maintaining cleanliness, learning precise marching formations, and showing respect to superiors through salutation.
The concept of honor encapsulates the ethos of mutual support and shared standards of conduct, compelling soldiers to hold themselves and each other accountable. Solidarity is strengthened in these conditions, as soldiers rely on the trust and cohesion built among them, especially in uncertain and challenging environments where their unity and collective commitment to the mission are crucial for success.