Explanation

A is correct because Bill Gates is known to have authored or been associated with the book 'How to Prevent the Next Pandemic'. B is incorrect because David Baltimore is a virologist and not the author of this specific book. C is incorrect because Tedros Adhanom is the Director-General of the WHO, but not the author mentioned. D is incorrect because Elon Musk is primarily known for technology ventures and has not authored this book.