Fill in the blank with the most appropriate option.
He said to her, "Don't enter the room".
He ordered her __________ the room.
The two ways of relating what a person has said are 1)direct and 2)indirect (reported speech).In direct speech, the original speaker's exact words are repeated. In indirect/reported speech, the exact meaning is expressed but not necessarily using the original speaker's exact words. Pronouns and possessive adjectives usually change from first or second person to the third person except when the speaker is reporting his own words. Sometimes a noun can be inserted to avoid doubt.
When we turn direct questions and exclamations into indirect speech, they are converted to affirmative statement .( ? and ! is not used).
Option A is correct as when we convert the given direct command to indirect speech, don't +verb is changed to not to + infinitive construction.
The other options are wrong as not is missing, didn't, doesn't, and do not cannot be used.
The correct answer is A)not to enter