Read the excerpt from act 1, scene 5 of The Tragedy
of Macbeth. Lady Macbeth and Macbeth are
discussing Duncan's upcoming stay at their castle.
Lady Macbeth. And when goes hence?
Macbeth. To-morrow, as he purposes.
Lady Macbeth. Ol never
Shall sun that morrow see.
Your face, my thane, is as a book where men
May read strange matters. To beguile the time,
Look like the time; bear welcome in your eye,
Your hand, your tongue: look like the innocent flower,
But be the serpent under 't. He that's coming
Must be provided for; and you shall put
This night's great business into my dispatch;
Which shall to all our nights and days to come
Give solely sovereign sway and masterdom.

How does the simile "look like the innocent flower"
contribute to the sinister mood of this except?

O Lady Macbeth is pressuring Macbeth to appear as
something he is not in order to conceal his inner turmoil.

O Lady Macbeth is concerned that Macbeth is unable
to properly welcome his guest and must give him advice.

O Lady Macbeth is eager to play the hostess,
welcoming the king with beautiful decorations and vibrant flowers.

O Lady Macbeth is confident that they can appear as
innocent bystanders while their plot to kill the king is carried out.