I wonder who was asking the questions - a black person or a white one.
I also wonder if the children were given any instructions beforehand e.g. told they could, or could not, choose to say both dolls were the same in any answer.
Children often try to do what they think an adult wants.
Looking at it that way, at least some of them must have felt bullied by the questioner.
What gives you a warm feeling? 🥰
Shingles - Again. Have the Vaccine!