某工厂生产的18个羽毛球中有一个重一些，这样的球会影响运动员的比赛水平．用天平称，至少称几次能保证找出这个羽毛球？

A client is to be discharged from an acute care facility after treatment of right leg thrombophlebitis. The nurse notes that the client's leg is pain free, without redness or edema. The nurse's actions reflect which step in the nursing process

A．Assessment.

B．Analysis.

C．Implementation.

D．Evaluation.