Which of the following statements is true?

A. Arterial thrombi to be white and non occlusive (mural) where as venous thrombi are red and occlusive

B. Venous thrombi are soft, red and gelatinous where as arterial thrombi are firm and white

C. Arterial thrombi produces ischemia and infarction where as cardiac and venous thrombi cause embolism