Final answer:
Closed-ended questioning requires only yes-or-no answers, limiting the patient's freedom to explain, while open-ended questions allow for more expression and result in qualitative data.
Step-by-step explanation:
The type of questioning that offers the patient little freedom to explain his answers and requires only yes-or-no answers is b) Closed-ended questioning. Closed-ended questions are designed to receive specific, limited responses such as yes, no, or a choice among predefined options. These differ from open-ended questioning, which allows individuals to express their thoughts and feelings more freely, often resulting in qualitative data that includes personal insights and subjective opinions.