![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
In the circuit, given that , the real direction of voltage and current is:
A.
point a has the higher potential, current flowing from a to b
B.
point a has the higher potential, current flowing from b to a
C.
point b has the higher potential, current flowing from a to b
D.
point b has the higher potential, current flowing from b to a