Which of the following is NOT one of the legal standards for a common-law marriage?

A common-law marriage does not require a formal ceremony or official marriage license, which is what makes the choice stating that the couple must formally marry the correct answer in this context. Common-law marriage is established through the actions and behavior of the parties involved rather than through bureaucratic processes.

To validate a common-law marriage, the couple typically must demonstrate legal capacity to marry, indicating that they are both of legal age and free to marry. Living together and behaving as husband and wife, as well as publicly presenting themselves in that manner, are both essential features that help establish the existence of a common-law marriage. Therefore, A is the statement that does not align with the legal standards associated with common-law marriage.