The correct answer is: A. apathy
Apathy is a lack of interest, enthusiasm, or concern. It is a state of indifference or unconcern.
Empathy is the ability to understand and share the feelings of another person. It is the ability to put yourself in someone else’s shoes and see the world from their perspective.
Antipathy is a feeling of dislike or aversion. It is a strong negative feeling towards someone or something.
Sympathy is a feeling of pity or compassion for someone who is suffering. It is a feeling of sorrow or regret for someone else’s misfortune.
In the given question, the two girls are always together. This suggests that they have a strong bond and feel a deep connection to each other. This is not consistent with the definitions of apathy, empathy, or antipathy. Sympathy is a possibility, but it is not the most likely explanation. The most likely explanation is that the two girls have a great affinity for each other.