Questions Relate to the Following Output Which Is from a Standard

Questions relate to the following output which is from a Standard Multiple Regression where the researchers wished to assess the contribution of stress and stigma to depression.
Model Summary
a.Predictors: Constant) , total of perceived stress, total of Stigma for neurological conditions
ANOVA^b
a.Predictors: Constant) , total of perceived stress, total of Stigma for neurological conditions
b.Dependent Variable: total of CES-D depression
Coefficients^a
a.Dependent Variable: total of CES-D depression
-Which of the following is the most appropriate answer?

A) The confidence interval for perceived stress encompasses zero, meaning that we cannot be sure whether the true population regression slope is negative, zero, or positive
B) The confidence interval for perceived stress encompasses zero but as the sample regression slope is .497 and is significant at p=.05, we can be 95% certain that it is positive in the general population
C) The confidence interval for stigma is such that we cannot be sure whether the true population regression slope is negative, zero, or positive
D) The contribution of stigma and stress together to depression is non-significant