"denying a college education to children of illegal immigrants is like cutting off your nose to spite your face" is a poorly phrased central idea for a persuasive speech because it is

It is a poorly phrased central idea for a persuasive speech because it is "expressed in figurative language."

Persuasive speech is a speech planned to persuade the group of onlookers to accomplish something. Regardless of whether you need to motivate individuals to vote, quit littering, or alter their opinions around a critical issue, powerful talks are a successful method to influence a crowd of people. There are numerous components that go into an effective persuasive speech. Yet, with some planning and practice, you can convey a ground-breaking speech.

C. is the answer ur welcome