Correct Answer & Explanation
Option B
• The tone of a master addressing a servant is typically an order; thus, 'said to' becomes 'ordered'.
• The first-person pronoun 'me' refers to the master (subject) and changes to 'him'.
• The idiomatic time phrase 'at once' remains unchanged (it does not change to 'at that once').
• Consequently, option B is perfectly formed.