How can managers prevent silos from occurring at an organization?

Managers cannot prevent silos from occurring at an organization. They are inevitable.
By creating their own set of goals, independent of other departments, for their team to align behind.
By creating a culture transparency and collaboration by aligning their teams under shared vision and set of goals.
By only communicating with their team when it’s necessary to prevent information overload.

The correct answer is:

By creating a culture transparency and collaboration by aligning their teams under shared vision and set of goals.