The major details that this short excerpt explained were all connected with the negative consequences of divorce. The first sentence might even give it away because it says "Divorce has serious negative consequences". All things being discussed relate to the negativities that occur after a divorce. Although it may seem as though d) may be the answer, that only talks about a certain part of the passage and not the overrall argument.
The best explanation of the importance of the sixth step to report their findings is A. <span>It’s important to report and publish scientific findings so that researchers in can maintain their accreditation.</span>