Answer:
The correct answer is B. Clarifying a specific point
Explanation:
An open ended question is the type of questions which does not have close ended options like yes or no. They provide the opportunity to respond in a thoughtful way, in whichever way want to. It gives them a free hand rather than options to choose from.
In above question, option B is the only option that is not a use of an open ended question as it focuses on a specific point rather than a variety.