Answer:
D. And even now, /to crown my thoughts with acts, be it thought and done.
Step-by-step explanation:
William Shakespeare's Macbeth revolves around the life of Macbeth and his rise to power courtesy of the three witches' prophecy of his supremacy in the kingdom. And in this zeal to achieve his intended power of being king, he did numerable murderous deeds just to get to the top, which also led to his downfall.
As seen in the speech of Macbeth in Act IV scene i, he seems greatly disturbed at the prophecy of the three witches and demanded they tell him more. But then when he got the warning that Macduff is getting away, he decided to immediately pursue the man and kill him. He decided that instead of being indecisive, he will act instantly on any occasion so as to achieve his aim and mot give it a second thought. And this is perfectly supported in the line "and even now,/ to crown my thoughts with acts,/ be it thought and done".