Which of the Following Is Likely If Terry Has a More

Which of the following is likely if Terry has a more optimistic personality than his brother Barry?

A) Terry will likely live seven-and-a-half years longer than Barry.
B) Terry is less likely to have a heart attack than Barry.
C) Terry is likely to have had fewer stressful events in his life so far than Barry.
D) Terry is likely to have experienced significantly more stressful events in his life than Barry.