Which of the Following Is a Benefit of Effective Segmentation

Which of the following is a benefit of effective segmentation?

A) The mere attempt to segment business market forces the marketer to become more attuned to the unique needs of customer segments.
B) Knowledge of the needs of particular market segments helps the business appropriately train and deploy the salesforce.
C) It allows the business marketer to focus on product development efforts.
D) all of the answer choices.
E) Both knowledge of the needs of particular market segments helps the business appropriately train and deploy the salesforce and it allows the business marketer to focus on product development efforts.