Over here, I cannot understand the explanation of the answer given I mean don't electrons flow from a - Physics - Electricity

Question

Over here, I cannot understand the explanation of the answer given
I mean don't electrons flow from a region of lower potential to
higher potential? so then how can Q be at lower potential? Please
explain the explanation

Rohit Babu · Accepted Answer

Dear Student,Given,V=2 5V,We have,V=Wq=K E q⇒K E
=Vq=2 5×1
6×10-19=4×10-19JIt only matches Option DGenerally,negative charges move from lower to higher potential and positive charges move from higher to lower potential
Electron  moves from lower potential to higher potential
Here electron moves from P to Q
 So P must be at lower potential and Q must be at higher potential
We can consider curent flow also
Current  flows  in the opposite direction to the direction of motion of electron
Therefore direction of current is from Q to P
Current flows from positive to negative terminal
So Q is positive and P is negative
There is a mistake in the options
Ans:K
E= 4×10-19J, P is at lower potential
Regards

Over here, I cannot understand the explanation of the answer given...I mean don't electrons flow from a region of lower potential to higher potential? so then how can Q be at lower potential? Please explain the explanation.