If A is overridden by B, B is overridden by C, C is overridden by D, D is overridden by E, while executing ; the conditions A,C,D are satisfied while B and E don’t. then which rule enter the agenda?

In the override chain A->B->C->D->E, a rule enters the agenda if its conditions are satisfied and the rule directly overriding it has unsatisfied conditions. A's conditions are satisfied and B (its overrider) has unsatisfied conditions, so A enters. D's conditions are satisfied and E (its overrider) has unsatisfied conditions, so D enters. C's conditions are satisfied but D (its overrider) also has satisfied conditions, so C is blocked. B and E have unsatisfied conditions so they don't enter regardless.