B. Marriages fail because people make poor decisions. I'm always amazed when I hear someone publicly criticizing their mate. Many marry based on sheer emotions or passion. They will pay later. C. Marriages also fail because of faulty expectations.
People sometimes marry solely for what they can get out of marriage.
When their needs are not being met, or their rights are violated, ending the marriage is the only option. In otherwords, one of the main reasons marriages fail is due to selfishness. Marriage is not entered into with the idea of mutual giving. D. Marriages fail because of faulty assumptions about the marriage relationship. That marriage is an entirely different kind of relationship.