The stinger stays ..., and results in ...(the logic is that because the stinger stays inside an animal's body, it causes damage to the animal) perfect
C. stinger results in the fact (stinger can not results in...) Wrong
E. stinger is barbed and stays, ("is barbed" and "stays" are two different things, one means characteristics, and another means an action, so should not be paralleled) Wrong
The stinger stays ..., and results in ...(the logic is that because the stinger stays inside an animal's body, it causes damage to the animal) perfect
C. stinger results in the fact (stinger can not results in...) Wrong
E. stinger is barbed and stays, ("is barbed" and "stays" are two different things, one means characteristics, and another means an action, so should not be paralleled) Wrong
C and D have the same illogical problem: no reason for the result. In C, honeybee's stinger...results...; how could a stinger results? In D, if therefore or and then is in place of and, D will be better, but still unclear in causing.