Which of the Following Statements About Lead Qualification and Management

Which of the following statements about lead qualification and management is true?

A) Firms often engage in prequalification of leads for their field sales forces.
B) A lead management system can be used to grade leads and establish a priority call list.
C) The judicious use of technology makes lead qualification and management more efficient and effective.
D) Telemarketers are used by some companies to prequalify leads.
E) All of the above.