According to a study in the year 2013 by Fellman, the chances of twins:

Question

Quizplus · Accepted Answer

According to the study by Fellman, the chances of twins increase with parental age. Therefore, option B is correct. Option A is incorrect as it suggests that conceiving before 21 increases the chances of twins, which is not supported by the study. Option C is also incorrect as there is no evidence to suggest that the number of times couples have sex before conception affects the chances of twins. Option D is partially correct as the use of fertility drugs can increase the chances of twins, but the question is about the general chances of twins, not the impact of fertility drugs.

According to a Study in the Year 2013 by Fellman