The trustee model of broadcast regulation is based in part on the premise that because broadcast spectrum space is limited, and therefore not everyone who wants to broadcast can, those who are granted licenses to serve a local area must accept regulation. This is called the philosophy of:.
1. spectrum scarcity
2. media influence
3. fiduciary rule
4. trusteeism

1.

Explanation:

Based on the information provided within the question it can be said that this is called the philosophy of spectrum scarcity. Which like mentioned in the question refers to the agreement of following all the rules and regulations of owning piece of the scarce space in the broadcasting spectrum, which you are being allowed to broadcast.

answer; functional fixedness;

answer; institution based;