Step 1: Concept Identification:
The query seeks the term for the capability to comprehend and share another's emotional state.
Step 2: Explanation of Options:
(A) Temperament: An individual's inherent, biologically determined behavioral and emotional disposition. This relates to one's own reactions, not to understanding others' emotions.
(B) Sympathy: A feeling of concern and care for another, often with a desire for their improvement. This is feeling *for* someone, distinct from feeling *with* them. Example: feeling sorry for a friend who lost a pet.
(C) Empathy: The capacity to understand and vicariously experience another person's feelings from their viewpoint. It includes cognitive empathy (understanding feelings) and affective empathy (sharing feelings). This option aligns with both aspects described in the question.
(D) Attachment: A profound and lasting emotional connection between individuals, spanning time and distance, particularly notable between a child and caregiver.
Step 3: Conclusion:
The capacity to identify, comprehend, and share others' feelings is defined as empathy.