Researchers wanted to determine if there was an association between daily kale consumption and the occurrence of skin cancer. The researchers looked at 94,284 women and asked them to report their kale-eating habits. The researchers also determined which of the women had nonmelanoma skin cancer. After their analysis, the researchers concluded that consumption of two or more servings of kale per day was associated with a reduction in nonmelanoma skin cancer. Complete parts (a) through (c) below. O (a) What type of observational study was this? Explain. O A. This was a cross-sectional study because all information about the individuals was collected at a specific point in time. O 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. O C. This was a case-control study because individuals that had a certain characteristic were matched with those that did not