[Solved] A conditional indorsement: A)destroys the negotiability of the instrument. B)does not destroy the negotiability of an otherwise negotiable instrument. C)validates the instrument. D)does not destroy the negotiability of the instrument but invalidates it. Sexual Behavior: Actions that individuals engage in to express their sexuality, including physical intimacy and erotic activities. Survey Research Method: A systematic collection of data from individuals using questionnaires or interviews to study and analyze opinions or behaviors. Casual Sex: Sexual activities occurring outside of a formal relationship without the expectation of commitment or emotional attachment. Observational Research: Studies in which the researcher unobtrusively observes people’s behavior and records the findings.