According to a Recent University of Western Research Study About

According to a recent University of Western research study about the causes of colic in young infants,which of the following statements is true?

A) Infants who were exclusively breast-fed were most at risk.
B) Infants who were exclusively bottle fed non-human milk, were most at risk.
C) Feeding methods or the use of human/non-human milk were not significant causal factors.
D) Infants who were fed with a combination of breast milk and non-human milk were most at risk.