Which of the following are considered more trustworthy than others in communication?

Friends are considered more trustworthy than others in communication.

Because friends have no commercial stake and a bond of goodwill, their word about a product or idea is taken as sincere.

Their recommendations carry the weight of personal experience shared without hidden motive.

Sales persons have an obvious interest in closing a deal, so their claims are received with suspicion.

Paid reviewers are compensated for their verdict, which weakens the credibility of what they say.

Strangers offer no established relationship or accountability, so their advice does not command the same trust as a friend's.