下列活动中，以自己的名义进行活动且其行为受到一定限制的是：( )。

A．经纪
B．经销
C．行纪
D．包销

Which pregnancy-related physiologic change would place the client with a history of cardiac disease at the greatest risk for developing severe cardiac problems

A．Decreased heart rate.

B．Decreased cardiac output.

C．Increased plasma volume.

D．Increased blood pressure.