Why does it seem that the rate of marriage is decreasing?
Explanation
Option A states that fewer people are living alone, which does not directly explain the decline in marriage rates. Option B correctly identifies that many individuals are choosing to live together in committed relationships without formal marriage, contributing to the appearance of declining marriage rates. Option C suggests that remarriages offset the decline in first marriages, which is not sufficient to explain the overall trend. Therefore, the primary reason is option B.