Final answer:
The best fitting word for an object that is thrown and can also mean to cause harm to the originator is 'hurl' (option B).
Step-by-step explanation:
The question seems to be about the definition of a word that has both a literal and a figurative meaning. Based on the information provided, the word that best fits the description of a thrown object, which as a verb can also mean to cause harm to the originator, is B) Hurl. When you hurl something, you throw it with great force and when you hurl insults or accusations, it can sometimes backfire and harm you as well. This is different from retaliate, propel, and launch, which have different connotations and are not as closely associated with the concept of causing harm to the originator.