Final answer:
The false statement is D. After 20 years of marriage, some report an increase in feelings of passionate love.
Step-by-step explanation:
The false statement is D. After 20 years of marriage, some report an increase in feelings of passionate love. While it is possible for couples to maintain or even increase their feelings of passionate love after 20 years of marriage, it is not the norm. Research shows that passionate love tends to decline over time in long-term relationships due to various factors such as life stress, familiarity, and changes in relationship dynamics.