What fact about Eldest Vincent suggests financial wrongdoing?

The assertion that Eldest Vincent embezzled millions from his father's bank is a direct indication of financial wrongdoing. Embezzlement involves the illegal act of taking or misappropriating funds that one has been entrusted to manage, which constitutes a serious breach of trust and legality. The act of embezzlement paints a clear picture of ethical and legal violations in financial management.

In contrast, the other options do not inherently imply any illegality or unethical behavior. Inheriting a large sum of money may suggest wealth but does not indicate any financial misconduct. Managing a bank for several years reflects a professional responsibility and experience, which is unrelated to misconduct without any additional context. Investing in real estate could be a legitimate financial activity and doesn’t suggest wrongdoing unless mismanaged or conducted under inappropriate circumstances. Thus, the embezzlement statement stands out as the clear indicator of financial malpractice.