Keynote - Click to Reveal

Good Morning,

I'm hoping someone can help me - I have searched the Internet for some hours and not found the answers I seek.

I would like to have a Slide with four options shown. If I click on Option 1 I want Picture A to be displayed. If I click on Option 3 I was Picture C to be displayed. I only want the picture to be displayed when the corresponding option is clicked and I could click on them in any order selected by the crowd.

Can someone tell me how to do this in Keynote ?

Thanks

Mal