Well, I would probably cushion it in comforting words and, depending on the relationship and context, say things like “it’s ok, we’d just like to understand what’s going on for you and understand why you’re saying no to get to know you better and see what is important to you.” But then I’d like to hear if that’s ok with the person.
More info on integrating objections overall: https://www.sociocracyforall.org/strategies-for-integrating-objections
I recently witnessed a great case that’s not covered here though: the objection was that the candidate didn’t have enough experience. The group decided that instead of training the facilitator more, the whole group would be trained more to follow along better 