Which of the Following Factors Is the Biggest Predictor of the Likelihood

Multiple Choice

Which of the following factors is the biggest predictor of the likelihood that a spouse who is caring for their sick partner will develop depression symptoms?​

A) ​marital satisfaction
B) ​whether the partner's illness is or is not progressive
C) ​whether the partner's illness is psychological or physical in nature
D) ​the nature and severity of the partner's symptoms