The correct answer is C. Acrimony.
Acrimony is a feeling of deep ill-will or resentment. It is often associated with anger, bitterness, and hostility.
Acrimony can be expressed in words or actions, and it can have a negative impact on relationships.Sourness is a sour taste or flavor. It is often associated with citrus fruits, such as lemons and limes. Sourness can also be caused by certain foods, such as vinegar
and yogurt.Hoarseness is a condition in which the voice is rough or husky. It is often caused by a cold, laryngitis, or overuse of the voice.
Aspersion is a false statement that is damaging to someone’s reputation. It is often used in the context of slander or libel.
None of these options are synonyms for bitterness.