Final answer:
All salespeople need training, regardless of their inherent selling traits.
Step-by-step explanation:
The correct statement is option b: all salespeople need training. Regardless of whether someone has inherent selling traits or not, training is crucial for success in the sales field.
Training helps salespeople develop important skills and knowledge, such as effective communication, product knowledge, and negotiation techniques. It also helps them understand the sales process and customer behavior, improving their ability to close deals and meet sales goals.