Concept:The underlined word expresses a state of being satisfied, and the nearest synonym is "contented."
Explanation:"Contented" describes a person who is happy and satisfied with what they have.
"Positive" means optimistic or full of confidence, which is different from being satisfied.
"Surprised" refers to feeling shocked by something unexpected, so it does not fit.
"Appeased" means pacified or calmed, often after anger, but it does not carry the same idea of inner satisfaction.
Thus, only "contented" matches the meaning of the underlined word most closely.
Answer:C. contented