And the next slide the first student answer to the question 3 is married couples with no children. If they want to have children that come from the blood itself, what method to use?
This answer is arguments supporting the accuracy and reliability, increase compared to the first answer. We gave one point for his answer. But the second student answer is not convincing because each person has a different opinion. This answer is an invalid supportive argument, we gave zero points for his answer.