Final answer:
Family shareholders should be provided with detailed financial reports and explanations to understand the financial details of the family company. Therefore the correct answer is a. They should be provided with detailed financial reports, as well as the tools and explanations needed to understand them.
Step-by-step explanation:
Family shareholders should be aware of the financial details of the family company to make informed decisions and have a clear understanding of the company's financial health. Option A, providing detailed financial reports and the tools needed to understand them, is the most suitable choice. By receiving comprehensive financial reports and explanations, family shareholders can better assess the company's performance and contribute to its growth.