One of the Results of the Negative Income Tax Experiment

One of the results of the negative income tax experiment was that increasing numbers of women left their marriages.This was because:

A) they were less financially dependent on their (possibly) abusive husbands.
B) the tax code provided a significant advantage to singles versus couples.
C) women found it easier to open independent businesses.
D) new laws made divorce easier,but the trend was mistakenly blamed on the negative income tax.