Answer:
The answer is: Third party
Step-by-step explanation:
When we were little kids our parents told us that it was OK for us to trust some people who they considered to be their friends. That is an example of how third party trust works.
There was no way any of us could have met and interacted with one of them by ourselves (we were little kids and they were adults), but since our mother trusted her friend, we would trust her also.