單選題

Which of the following is _incorrect_?

 (A) You've probably heard the list of factors _that put you at risk for heart diseases_.

 (B) The fans can create wind speeds up to 250 kilometers per hour in flight chambers,_which they reach 4.87 meters in diameter and 16.46 meters in height_.

 (C) Hidcote is particularly beautiful in the summer, _when its flowers burst with color_.

 (D) The thing _that occupied his mind_ was the disease rabies.