Final answer:
The greatest concern associated with storing customer information in a company's computer system is the worry that their information might not be secure. Therefore correct option is A
Step-by-step explanation:
The greatest concern, as highlighted in the text, associated with storing customer information in a company's computer system is a. customers are worried that their information might not be secure. Recent large-scale data breaches at various organizations have exposed millions of people to the threat of identity theft when hackers gained access to personal information by compromising website security. This has led to increased concerns about the security of customer data.