The pronoun “those” in the sentence “Our hopes are that you...

The pronoun “those” in the sentence “Our hopes are that you won’t find too many of those around here.” (lines 32-33) refers to (A) safety responsibilities (line 28) (B) safety and health hazards (line 29) (C) extreme hazards (line 31) (D) our hopes (line 32) (E) more subtle hazards (line 34)