Which of the Following Is NOT a Reason Given in the Text

Which of the following is NOT a reason given in the text why denominational affiliation tends to be correlated to social class?

A) The belief system of some denominations may contribute to worldly success.
B) Some people may be attracted to a church because the ideological position of the church is compatible with their own socioeconomic circumstances.
C) Some people may join a church to find people with similar educational levels and other homogeneous characteristics.
D) High birth rates in some denominations are causing downward social mobility.
E) The historical fact that certain ethnic groups, who adhered to certain denominations, were well established financially in this country before other groups arrived.