The correct answer is TRUE.
Both Catholic and Protestan christian faiths consider that stealing another person's properties is a sin, an inadequate behaviour for which belivers need to ask for forgiveness to God.
In this line, people who frequently attend the religious services connected to the abovementioned faiths, will more likely implement the ideas of the religion in their life, their choices and their opinions than others. Therefore, it is quite probable that they will not support selling or buying stolen goods.