Which sentence is correct?

Roger's teacher told him straight out "Don't come back to class until all of your work is done."

Roger's teacher told him straight out: "Don't come back to class until all of your work is done."

Roger's teacher told him: straight out, "Don't come back to class until all of your work is done."

Roger's teacher told him straight out "Don't come back to class: until all of your work is done."

Its C. Roger's teacher told him: straight out, "Don't come back to class until all of your work is done."

Good luck!

Roger's teacher told him straight out: "Don't come back to class until all of your work is done."

Explanation:

In any form of dialogue or speech or voice, the use of punctuation such as inverted commas (" ") to put the 'speech' of the speaker is needed. And then, depending on the form of the conversation or the speech, the corresponding punctuation signs are to be used.

In the given sentences, all of the options except the second option are all wrong.

Option 1 is wrong as there has to be either a comma right after "out" or maybe even a colon to suggest the start of the speech.

Option 3 is wrong as the colon is placed unnecessarily in the sentence.

Option 4 is wrong in the same way, placing the colon in the middle of the reported speech where it is not required.

Thus, the correct sentence is option 2.