If on a group of 457 patients, for a risk factor we calculated the relative risk 7.74. (95%confidence interval is 6.5 - 9.5), the possibility of developing the disease being investigated is:

a. Lower in the exposed than in the unexposed, RR being less than 100

b. very small when exposed to the factor

c. very high when exposed to the factor

d. the same in the case of exposure in the case of non-exposure