If a Multi-National Company Wanted to Conduct Background Checks on All

If a multi-national company wanted to conduct background checks on all current and potential employees, including those based in Europe, what key provision would the company have to follow?

A) Background checks on employees could be performed only under prior notice to all employees.
B) Background checks are only authorized with prior notice and express consent from all employees including those based in Europe.
C) Background checks on European employees will stem from data protection and employment law, which can vary between member states.
D) Background checks may not be allowed on European employees, but the company can create lists based on its legitimate interests, identifying individuals who are ineligible for employment.