Passage Two Don’t automatically blame mom: A crying baby can be just as much the result of dad’s state of mind, Dutch researchers report. Other studies have found that depression among mothers can be related to excessive crying, a common problem with newborns, but the researchers said that little was known about whether fathers’ emotions and behavior also have an effect. "Up to now, almost all attention went to the prenatal (出生以前的) effects of motherly depression on child development, leading to the development of detection and treatment programs that focused on mental well-being of mothers." said lead researcher Dr. Mike Berg, a psychiatrist (精神病医生) at the Erasmus Medical Center in Rotterdam. "This study showed the importance of taking paternal factors and well-being during pregnancy into account, next to motherly factors," she said. Bergs team gathered data on symptoms of depression among parents of 4,426 infants who were two months old. Overall, just 2.5% of the infants in the study fit the excessive crying criteria. But, the researchers found a 30% higher risk for depression among parents whose infant cried excessively. "This finding could not be attributed to co-existing depressive symptoms of the mother, which is already known to be a risk factor for excessive infant crying" Berg said. It could be related to genetics, a depressed father or, indirectly, through factors such as marital, family or economic stress, she said. In fact, a dad with symptoms of depression was twice as likely to have an infant who cried excessively as was a dad not depressed, the study found. "Fathers do matter, so care for the mental well-being of fathers during pregnancy" Berg said. Dr. Jon Shaw, a professor and director of child and adolescent psychiatry at the University of Miami, said that the study shows how depression can lead to infant’s excessive crying. "This seems to be related perhaps to the enduring effects of fathers’ depression on the family atmosphere, the parental relationship, child parenting (抚养) and, perhaps as the authors suggest, there may be a genetic factor involved" he said. According to the passage, which of the following statements is true
A. Babies whose parents are not in depression will not cry. B. Genetic factors might affect the mental health of infants. C. Most newborns, especially 2-month-olds, will cry excessively. D. A happy daddy will reduce the risk of their kids’ getting mental illness.