题目内容：
阅读下面短文,回答题.Parents might say "honesty is the best policy," but when it comes to talking with their own children, mom and dad lie surprisingly often, finds a new study carried out by researchers in the University of toronto, Canada.
Almost every parent in the study admits having come up with some tales to influence a child' s actions and feelings. For example, a parent is annoyed by a child' s crying and says, "The police will come to get you if you don' t stop crying now. " In another example, an uncle has just died and the child is told that he has become a star to watch over the child.
Whether parents lie to benefit themselves or to protect the child, researchers suggest such talltales could give children mixed messages at a time when they are trying to figure out how to deal with the social world.
Lies could also harm the parent-child relationship. It could even keep children from learning certain rules. "If I am always lying to the child in order to get the child to do X, Y, or Z, then they have never learned why they should do X, Y, or Z. " Heyman, one of the researchers, said.Heyman also said, "It is common for parents to try out various ways, including lying, to guide a child, but most parents never think about how it will influence their child. I think parents should figure it out in advance what their general beliefs are, so when it comes to the situation you're working with your beliefs rather than what comes into your head at the moment. "
What did the researchers find out in their recent study? A．Most parents are strict with their children.
B．Many parents like to tell police stories.
C．Few parents believe in honesty.
D．Parents often lie to children.
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