Final answer:
Religions often have sub-divisions called denominations with additional sub-divisions. Different interpretations of religious doctrine and practices can lead to divisions within a single group. This diversity makes it challenging to make sweeping statements about specific religions.
Step-by-step explanation:
Within many religions, there are many sub-divisions, called denominations, and within those sub-divisions there may be additional sub-divisions.
Even with a single small group of believers or within a congregation, individuals will interpret or understand religious doctrine or engage religious practices differently than fellow members.
These numerous divisions within belief systems make it difficult to write definitive statements about specific religions.