Grace and George are engaged to be married and are considering taking a pre-marital education program to help their chances of having a successful marriage. Based on the research presented by your authors, what would you advise them? 

a. Don't waste your time. These programs show no positive or negative impact on marriages. 

b. These programs have consistent, though modest positive effects on marriages, so go ahead and sign up! 

c. Avoid these programs at all costs! Research shows that they actually harm marriages rather than helping them. 

d. These programs have reduced divorce by 90 to 92% among couples who attended them, so you should sign up immediately!