Select the option that is the passive form of the given sentence.

The Principal gave her a warning about coming late to school every day

She was given a warning about coming late to school every day by the Principal.

The correct passive form of the sentence "The Principal gave her a warning about coming late to school every day" is She was given a warning about coming late to school every day by the Principal.

The other options are incorrect because:

• She has given a warning by the Principal about coming late to school every day uses the present perfect tense, while the original sentence is in the simple past tense.
• She gives a warning to the Principal about coming late to school every day is in the active voice, not the passive voice.
• She was giving a warning by the Principal about coming late to school every day uses the past progressive tense, while the original sentence is in the simple past tense.