E; A-awkward and confusing construction; B-awkward, confusing, incomplete construction; C-"...and staying where it is inserted..." is incorrect usage of the progressive tense and results in the sentence stating that "The honeybee's stinger...results in the act of stinging causing" the bee's fatal injury, when the bee's fatal injury is caused by the fact that the heavily barbed stinger stays where it has been inserted; D-again, incompletely identifies the honeybee's stinger as the cause of the bee's fatal injury, rather than the fact that the barbed stinger stays where it is inserted. E states the causal relationship correctly. |