Answer:b) her measure of religiosity lacks validity,
Explanation:
-There are not relevant or actual facts that she is basing her discovery on.
-For someone to be able to conclude on something they actual need to do a research in the real world and be able to analyse their findings before they can make conclusion.
-Some people may go to church everyday but not fill in any church membership but she can't solely rely on the church membership as the evidence to say people rarely go to church.