A client with cirrhosis should be encouraged to follow which of the following diet regime

A. High-calorie, restricted protein, low-sodium diet.
B. Bland, low-protein, low-sodium diet.
C. Well-balanced normal nutrients, low-sodium diet.
D. High-protein, high-calorie, high-potassium diet.

下列叙述中，正确的是

A．金属与酸反应一定放出氢气

B．含金属元素的离子一定是阳离子

C．电离生成H⁺的化合物不一定是酸

D．金属离子被还原一定得到金属单质