Explanation:
as customer or client you may have once been to a restaurant that caries about it's client where you saw a waiter being fired because he had untidy hairstyle
Sentence B. is correct.
Sentance C. Should have been "Even his mother admitted he danced terrible."
sentance A and B used badly in properly so that only leaves B.
The word that best describe the mood of the poem is 'VIGILANT'.
The poem talks about the need to be watchful and be ready to run for one's dear life at the slightest sense of threat. The poem use simile and sensory imagery to pass across his information of the need to be vigilant.