Under a null hypothesis, a sample value yields a P-value of 0.015. Which of the following statements is (are) true?  I. This finding is statistically significant at the 0.05 level of significance.  II. This finding is statistically significant at the 0.01 level of significance.  II. The probability of getting a sample value as extreme as this one by chance alone if the null hypothesis is true is 0.015. 
选项为:A:I and III only  B:I only  C:III only  D:II and III only  E:I, II, and III  请回答其中一个选项.