Which lines in this excerpt from act iii of shakespeare’s macbeth refer to macbeth’s insecurity because of the threats to his kingship?

We have scotch'd the snake, not kill'd it;

She'll close, and be herself; whilst our poor malice

Remains in danger of her former tooth.

a. is the correct answer

waves come crashing to grey sullen shores.

powerful and strong, it breathes and roars.

cascading and caressing each grain of sand,

a warm embrace between sea and land.

high above, a seagull soars high.

wings of purity it spreads to fly.

battling high against darkened cloud,

in a wind that blows fiercely, flying graceful and proud.

beneath, the sand is soft and warm.

sculpted by nature, it's weathered the storm.

a passionate battle between calmness and rage,

a new chapter's beginning; don't turn the last page.

i listen again to the whispering waves,

music of nature calming and brave.

its power unknown, its stillness untamed,

mysterious and magical, a treasure earth claims.

plz mark brainliest

explanation: