A Medical Information Bureau (MIB) report may disclose which of the following?

The Medical Information Bureau (MIB) is a nonprofit organization that compiles information on the health and medical histories of individuals, primarily for the purpose of helping insurance companies evaluate risk and determine insurability. The information that MIB collects and reports can include a variety of health-related data relevant to underwriting decisions.

The option regarding prior use of marijuana is correct as the MIB does track and report on certain aspects of an applicant's health behavior, including the use of certain substances like marijuana. This historical use can be relevant to an insurer's assessment of an individual's lifestyle choices and potential health risks associated with such behaviors.

Other health-related information, such as recent surgeries, medications for chronic illnesses, and family medical history can also be considered important by insurers, but MIB reports are more focused on the applicant's individual medical history rather than familial history. While there may be passive references to surgical history or medications if they've led to claims or other reported issues, the specifics about these areas may not typically fall within the MIB's purview like substance use does. Thus, the emphasis on the historical substance use aligns with the nature of MIB reporting.