Weather forecast sometimes has a better history record than economists. They make a great contribution to the revenue. For example, a recent weather forecast said there would be a storm in a resort resulting thousand dollars books decrease that day while actually the resort enjoyed a sunny day. Weather forecast would bring marketing mix alteration to various super market or retail shops when they review the forecast

Question: Economists forecasts are prone to some biggest errors.
Options:
A. true, B. false, C. uncertain
Answer: "C"