During a shock state, the renin-angiotensin-aldosterone system exerts which effect on renal function（）
选项：

A:Decreased urine output, increased reabsorption of sodium and water.
B:Decreased urine output, decreased reabsorption of sodium and water.
C:Increased urine output, increased reabsorption of sodium and water.
D:Increased urine output, decreased reabsorption of sodium and water.