Which of the following phrasal verbs means ‘blame and criticize?

Out of the provided options, the phrasal verb that means "blame and criticize" is:

come down on

Here's why:

• Come down on: This means to criticize someone harshly or punish them for their actions, often in a formal or authoritative way. It accurately conveys the sense of disapproval and negativity associated with "blame and criticize."

• Come heavily on: While this suggests something negative happening to someone, it doesn't necessarily imply blame or criticism. It could mean facing difficulties or consequences, not specific negative judgment.

• Fall down on: This means to fail or disappoint in a task or responsibility. It doesn't imply blaming or criticizing the person, just pointing out their shortcomings.

• Fall heavily on: This can have various meanings depending on the context, but it doesn't typically denote blame or criticism. It might suggest something negative happening to someone, but not necessarily due to their fault.

Therefore, considering the specific meaning of "blame and criticize," "come down on" stands out as the most appropriate choice among the offered phrasal verbs.