"I don't know, but I'll find out" is a customer service example of… B a dangerous admission.
C losing a sale.
D magic words.

A(Not the answer) an uninformed sales rep.

C. losing a sale.

Explanation:

CRM is an acronym for customer relationship management and it typically involves the process of combining strategies, techniques, practices and technology so as to effectively and efficiently manage their customer data in order to improve and enhance customer satisfaction.

Simply stated, it's a strategic process which typically involves collecting customer information for the purpose of improving a customer's future experience.

Therefore, this set of employees are saddled with the responsibility of ensuring the customer are satisfied and happy with their service at all times.

A salesperson can be defined as an individual or employee who is saddled with the responsibility of taking orders from customers, as well as sales of finished goods and services to consumers or end users.

A lost sale can be defined as a situation in which a salesperson or business firm looses a selling opportunity for a variety of reasons such as going out of stock, unavailability of a brand (product line), lack of product knowledge, etc.

This ultimately implies that, a process in which a salesperson looses a sales opportunity due to one reason or the other is referred to as losing a sale.

Hence, "I don't know, but I'll find out" is a customer service example of losing a sales because the customer (buyer) may not be patient enough to get the feedback while others might walk away immediately in search of the product or service elsewhere.