Lines 46–50 show that Macbeth

A. knows that Macduff is a serious threat.

B. thinks that Macduff is not dangerous.

C. is not sure if he should fear Macduff.

D. wants Macduff to be afraid of him.

MACBETH. Then live, Macduff; what need I fear of thee? 46

But yet I'll make assurance double sure 47

And take a bond of fate. Thou shalt not live, 48

That I may tell pale-hearted fear it lies, 49

And sleep in spite of thunder. 50