When Combining the Two Categories of Questions, If a Salesperson's

When combining the two categories of questions, if a salesperson's strategic objective is to explore and dig for details, and the amount and specificity of information desired is confirmation and agreement, which type of questions will be used?

A) dichotomous or multiple-choice questions designed to be evaluative in nature
B) closed-end questions designed to be probing in nature
C) integrative questions designed to be tactical in nature
D) open-end questions designed to be reactive in nature