Taking the text above into account, analyze the following statements and the relationship between them:

I- The text depicts a situation in which a speaker of a non-British variation of the English language is criticized for their pronunciation.

II- The speaker defends their pronunciation as being correct for an American.

III- The producer insists that the speaker should pronounce the word 'schedule' the British way.

IV- The linguistic battle between the speaker and the producer ends with a clear resolution.