What Does It Mean to "Care" for Someone, According to Care

What does it mean to "care" for someone, according to care ethicists?

A) Caring for someone requires taking a positive view of the fulfillment of that person's needs and interests.
B) Caring for someone involves both caring about the person and skillfully taking care of his or her needs and promoting his or her interests.
C) Caring for someone amounts to ensuring that the person's needs are satisfied.
D) Caring for someone involves sacrificing one's own well-being for the sake of that person.