阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。
(2013·南昌市二模，D)
Parents say that honesty is the best policy, but they regularly lie to their children as a way of influencing their behavior and emotions, finds new research from the University of Toronto and the University of California.
Surprisingly little has been published on the subject of parental lying, so Gail Heyman, professor of psychology at the University of California, Diem Luu, a former student of the University of California, and Kang Lee, professor at the University Toronto, set out to explore the underresearched phenomenon. They asked US participants in two related studies about parents lying to their children—either for the purpose of promoting appropriate behavior or to make them happy.
