Problem: Researchers wanted to determine if there was an association between daily kale consumption and the occurrence of high cholesterol. The researchers looked at 93,124 women and asked them to report their kale?-eating habits. The researchers also determined which of the women had high cholesterol. After their? analysis, the researchers concluded that consumption of two or more servings of kale per day was associated with a reduction in high cholesterol. Complete parts? (a) through? (c) below. Question content area bottom Part 1?(a) What type of observational study was? this? Explain. Need Assignment Help?
A. This was a? case-control study because individuals that had a certain characteristic were matched with those that did not. B. This was a cohort study because it identified a group of individuals to participate in the study and observed the group over a long period of time. C. This was a? cross-sectional study because all information about the individuals was collected at a specific point in time.