A student is demonstrating the transformation of kinetic and potential energy in a system using the pendulum shown below.

image 2a640aaa81ca4b0db3c7f54a87bd9dc8

At which point in this system does the pendulum bob demonstrate minimum potential energy?
A.

1
B.

2
C.

3
D.

4

Based on the description provided, it is not possible to determine at which point in the system the pendulum bob demonstrates minimum potential energy without the visual image. Please provide more information or the image itself for further assistance.