The peon seems to have lost the confidence _____ his boss.
Explanation
The correct phrase is "lost the confidence of his boss", meaning the boss no longer trusts or believes in the peon."Confidence of" refers to losing someone's trust or approval.The peon seems to have lost the confidence of his boss.چپراسی لگتا ہے اپنے باس کا اعتماد کھو بیٹھا ہے۔