Regarding Technological Innovations That Are Affecting Selling and Sales Management

Regarding technological innovations that are affecting selling and sales management,

A) the use of laptops and software allows salespeople to be much more efficient in their use of time
B) notebook computers, although valuable, do not aid in developing improved buyer-seller relationships
C) because customers receive so much junk e-mail, e-mail messages are not an effective means to manage an account
D) cell phones and pagers allow sales managers and customers to intrude on salespeople's personal time and thus are ineffective in field selling