Helppp ahh i hate english

Whom does macbeth have murdered to keep one if the witches prophecies from coming true a. malcolm and donalbain b. king duncan c. the thane of cawdor d. banque and his son

Hurry i will give 50 pts to whoever answers.

What is the correct definition of a canal? a) a machine that picks cotton faster b) a large entity that can carry heavy loads c) a man made ditch filled with water d) a boat that can travel up the current