Final answer:
It is true that insurance companies use microcomputers to efficiently process the extensive data of millions of policyholders. Such technology supports risk assessment and enables insurers to negotiate lower rates, benefiting consumers.
Step-by-step explanation:
Insurance companies are indeed most likely to use microcomputers to process information about millions of policyholders. This statement is A. True. The vast amount of data that insurance companies handle, including personal details, policy information, and claims history, requires robust computer systems for efficient processing. As someone purchasing health insurance or life insurance, individuals may have more knowledge about their own risk factors than the insurer. However, through large-scale data analysis, insurance companies can assess risks and negotiate better rates for services, providing advantages to the consumer and savings for the company when settling claims.