If my retirement plan is making distributions that meet the RMD, do I answer the "RMD due" question in Turbotax with zero, or an amount matching my distribution?

Pensions and annuities deliver amounts determined by the plan. I can only assume these meet the RMD, but I don't know my RMD for such accounts. Turbotax asks for the RMD due but I don't know what that is.