It would most likely be B or C since they are the same. Dashes basically show emphasis and if the sentence inside them is taken away, the other parts of the sentence are not affected. If we took the lion part out of your sentence, the sentence would still be talking about symbolism. However it more common to use parenthesis or commas to add emphasis but that's just stylistic choice
The man had jumped from a plane but his parachute had failed to open. It is the unopened package.
I think the most grammatically correct answer is actually B. Correct me if I am wrong.
Metaphor/D
a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.
