According to the passage, the plot of Wuthering Heights and Frankenstein are notable for t

According to the passage, the plot of Wuthering Heights and Frankenstein are notable for their elements of ______.

A．morality and metaphysics

B．drama and secrecy

C．heroism and tension

D．mystery and irony

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！