Which statement is (are) true concerning hurricane forecasts? Group of answer choices a. The track forecasts for weak storms is not as accurate as forecasts for established hurricanes. b. Intensity forecasts are more challenging than track forecasts and have shown less improvement. C. The official National Hurricane Center track forecasts are largely based on numerical weather prediction forecasts. d. The most important data entering numerical prediction models is hurricane hunter soundings (dropsondes). e. All of the above