Which American investor and CEO of Berkshire Hathaway, known as the 'Oracle of Omaha', is consistently ranked among the world's wealthiest people through value investing?

• A Carl Icahn
• B Warren Buffett ✓
• C George Soros
• D Peter Lynch

Warren Buffett has led Berkshire Hathaway since 1965, achieving an average annual return of about 20 percent, and has pledged to give away 99 percent of his fortune.