Relationship selling refers to:

a. the assignment of a single salesperson to a single customer throughout the entire sales processwhen suppliers and sellers combine their expertise and resources to create customized solutions;

b. commit to joint planning;

c. and share customer, competitive, and company information for their mutual benefit, and ultimately, the customerthe practice of building ties to customers based on a salesperson's attention and commitment to customer needs over timethe practice of using an entire team of professionals in selling to and servicing key customersthe practice of maintaining contact with a customer on a regularly scheduled basis following the initial sale of a product or service.

A.

the assignment of a single salesperson to a single customer throughout the entire sales process when suppliers and sellers combine their expertise and resources to create customized solutions

Explanation:

Relationship selling refers to the sales technique that focuses on the interaction between the buyer and the salesperson rather than the price or details of the product.

A human interaction, where the salesperson generally cares about connecting with their customer or buyer. By caring about building relationships with potential customers and taking an interest in their world, it can significantly improve the odds of securing a sale and retaining that customer for the long-term.

1   b) the use of non-standard grammar  

2   a) quiet and shy.

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