Rayna provides a significant amount of information to others across a wide array of products, including durables and nondurables, services, and store type. She can provide information on product quality, sales, usual prices, product availability, store personnel characteristics, and other features of relevance to consumers. Rayna is best described as a(n) .

market maven

Explanation:

Market maven -

The term is associated with the person, who has the complete knowledge of the goods and services and the market , is referred to as a market maven.

A market maven has a lot of connection with various people and is very well - versed on the current state of the market , and has some discreet information which a normal person can never get access to .

The very so famous market maven are - George Soros , John Bogle and Warren Buffett.

Hence , from the given scenario of the question,

The correct answer is market maven .