In the end of Act IV, Malcom is ready to go fight Macbeth. He says, Macbeth is ripe for shaking and the Pow'rs above put on their

In the end of Act IV, Malcom is ready to go fight Macbeth. He says, "Macbeth is ripe for shaking and the Pow'rs above put on their instruments." What is he saying?

a. Macbeth is near and the bells are warning them.

b.They are prepared to take on Macbeth and the powers above urge them on.

c.They are too close to Macbeth and they are warned from above to stop.