An agile team used planning poker to estimate user stories. After all team members read a user story, the facilitator asks everyone to choose a card with estimated number of ideal days to complete a user story and then reveal the card. If estimates were widely different, the facilitator would immediately ask for re-estimates until all the estimates converge. What did the facilitator do wrong?
A. Participants used ideal days as the unit for the estimates.
B. Participants re-estimated immediately after everyone revealed their cards.
C. Cards were revealed when the process should have been anonymous.
D. The facilitator did nothing wrong and played by the rules.