\textbf{Events D and E are independent, with P(D) = 0.6 and P(D and E) = 0.18. Which of the following is true?} 
选项为:A:\textbf{P(E) = 0.12}  B:\textbf{P(E) = 0.4}  C:\textbf{P(D or E) = 0.28}  D:\textbf{P(D or E) = 0.72}  E:\textbf{P(D or E) = 0.9}  请回答其中一个选项.