PowerPoint VBA to change shape color on Click

[mchilapur]

Hello all,
I am trying to create an powerpoint Quiz template. Each slide have a question with 4 options below. These 4 options are rounded Rectangles with No-Fill.
I am looking for a VBA which can be assigned to each of these shapes, which On-Click, must change color to green if answer is correct and change color to Red if answer is wrong.

In the attached template, in slide 1, option 1 is correct answer and other 3 are wrong.
In slide 2, Option 3 is correct answer and other 3 are wrong.

Can anyone please help me with the code.? I know i am asking it from scratch, sorry for that, but i am very new to PowerPoint VBA.

Thanks in advance