According to grossarth-maticek, who had very low deaths from either cancer or cardiovascular disease?

The correct answer would be type III and type IV.

He investigated the relationship between the personality and diseases in the person.

He divided the people in four types based on their personality:

Type I: It includes people who have hopeless and nonemotional reaction towards stress.

Types II: These people reacted to the frustration with aggression, anger, and emotional arousal.

Type III: These people are ambivalent in nature. They shift from type I to type II and back to type I.

Type IV: They were happy and regarded their autonomy to their well-being.

He found that type I people tend to die of cancer and type II tend to die of heart disease whereas type III and IV had low deaths from either cancer or cardiovascular disease.