In developing a plan of care for a client with rheumatoid arthritis, the nurse should consider that clients with rheumatoid arthritis should be positioned so as to

A. prevent flexion deformities of the joints.
B. decrease edema around the joints.
C. promote maximum comfort.
D. prevent venous stasis.

农村人民公社化运动是我们党在五十年代后期全面开展社会主义建设中，为探索中国社会主义建设道路所作的一项重大决策。人民公社化运动的最大失误是？