33. Based on the information in the passage, which of the following can most reasonably be inferred about Zhou Yu's decision to wait for a specific wind pattern before launching his attack? (A) Zhou Yu possessed a superior understanding of local environmental conditions that Cao Cao's forces lacked. (B) Zhou Yu was uncertain whether fire attacks could be effective against Cao Cao's chained ships. (C) The allied forces at Red Cliffs needed additional time to build and prepare their fire ships. (D) Zhou Yu preferred to avoid direct naval confrontation with Cao Cao's larger fleet entirely.