A client who has sustained a head injury is to receive mannitol (Osmitrol) by IV push. In evaluating the effectiveness of the drug, the nurse should expect to find

A. increased lung expansion.
B. decreased cerebral edema.
C. decreased cardiac workload.
D. increased cerebral circulation.

下列对字符数组进行初始化的语句，正确的是( )。

A．char a[]="Hello";
B．char a[][]='H','e','l','l','o';
C．char a[5]="Hello";
D．char a[2][5]="Hello","World";