What happens to the probability of making a Type II error, , as the level of significance, a, decreases? Why? Choose the correct answer below OA. The probability increases. Type I and Type II errors are inversely related. OB. The probability increases. The sum of a and always equals 1. OC. The probability decreases. Type I and Type II errors are proportional. OD. The probability decreases. The more careful researcher is, the lower the chances of making any error.