Answer:
(B) flip the inequality sign.
Step-by-step explanation:
If we consider an inequality such that , then if we multiply the inequality with a negative number such as , then the inequality becomes .
Also, if we divide the above inequality , by a negative number that is , then the inequality becomes .
Therefore, if we multiply or divide an inequality by a negative number, then it flips the inequality sign.
Hence, option (B) is correct.