Answer:
principle of authority
Explanation:
In simple words, That is the principle that individuals join the ranks of reliable, certified professionals. Physiotherapists, for instance , are likely to convince more of the clients to stick with the prescribed fitness regimes by showing their medical certificates on the doors of their treatment rooms.
This. helps them to make their point more reliable and strong with less effort. Thus, from the above we can conclude that the given case relates to principle of authority.
