and 85% for Millennials. A 2019 Pew Research Report found that 69% of United States Catholics believed that in the Eucharist the bread and wine "are symbols of the body and blood of Jesus Christ", and only 31% believed that, "during Catholic Mass, the bread and wine actually become the body and blood of Jesus". Of the latter group, most (28% of all US Catholics) said they knew that this is what the Church teaches, while the remaining 3% said they did not know it. Of the 69% who said the bread and wine are symbols, almost two-thirds (43% of all Catholics) said that what they believed is the Church's teaching, 22% said that they believed it in spite of knowing that the Church teaches that the bread and wine actually become the body and blood of Christ. Among United States Catholics who attend Mass at least once a week, the most observant group, 63% accepted that the bread and wine actually become the body and blood of Christ; the other 37% saw the bread and wine as symbols, most of them (23%) not knowing that the Church, so the survey stated, teaches that the elements actually become the body and blood of Christ, while the remaining 14% rejected what was given as the Church's teaching. The Pew Report presented "the understanding that the bread and wine used in Communion are symbols of the body and blood of Jesus Christ" as contradicting belief that, “during Catholic Mass, the bread and wine actually become the body and blood of Jesus”. The Catholic Church itself speaks of the bread and wine used in Communion both as "signs" and as "becoming" Christ's body and blood: "[...] the signs of bread and wine become, in a way surpassing understanding, the Body and Blood of Christ". In a comment on the Pew Research Report, Greg Erlandson drew attention to the difference between the formulation in the CARA survey, in which the choice was between "Jesus Christ is really present in the bread and wine of the Eucharist" and "the bread and wine are symbols of Jesus, but Jesus is not really present", and the Pew Research choice between "during Catholic Mass, the bread and wine actually become the body and blood of Jesus" and "the bread wine are symbols of the body and blood of Jesus Christ". He quotes an observation by Mark Gray that