In The Decision Book: 50 Models for Strategic Thinking, refer to "The Stop Rule." According to the book, what was investor Gerald Loeb's Stop Rule about investments? Question 3 options: "[If] an investment loses 5 percent of its value, sell it! No questions asked. "[If] an investment loses 10 percent of its value, sell it! No questions asked. "[If] an investment gains 10 percent of its value, sell it! No questions asked