Victor and Tanya have a fairly ""traditional"" marriage. Tanya regards Victor as possessing superior judgment in terms of most decisions and always defers to his opinions. This illustrates which source of power?

expert

Explanation:

There are five sources of power. They are:

expert power legitimate power referent power coercive power reward power

Expert power means possessing or having knowledge and expertise in any particular area. It means having a sound knowledge in a specific field of expertise. Possessing expert power is highly valuable.

In the context, Victor possess expert power in decision making and is always takes the right decision or judgement in any thing. His wife always defers to him.