How is a changeable condition implemented in JS?

Question

JavaScript

There is a set of checkboxes and, depending on the checkboxes, the condition should change.
For example, in the example following the link, it is necessary that if the 2nd and 5th checkboxes are checked, the circles A and E become red (a class is added), and if all are checked, then only D, etc.
https://codepen.io/mycodepenio/pen/eMdJWq

Answer 1

https://codepen.io/anon/pen/EEgoZx?editors=0010
I had to rewrite a little, at the same time I threw out the binding to the id
This is of course not production ready, but for a start, I think it will work.

Answer 2

For example, like this, https://codepen.io/anon/pen/eMdewb