Which of the following signs and symptoms would be an early indication that the client's serum potassium level is below normal

A．Diarrhea.

B．Tingling in the fingers.

C．Sticky mucous membranes.

D．Muscle weakness in the legs.

对索赔报告的审查过程中，主要分析证据资料的( )，这也是索赔要求有效的前提条件。

A．正确性

B．有效性

C．系统性

D．完整性

E．合理性