In this question why murphy's sign will not be seen?

in this question why murphy’s sign will not be seen?
In choledocholithiasis, 90% are due to GB stone. And GB stone shows acute cholecystitis which shows Murphy’s sign.

That’s a very indirect association.

Here Murphy’s is the answer because that’s a direct answer for cholecystitis.

First, there has to be concurrent gallstones and then also active inflammation - too far-fetched.

Question is which feature not seen

yes… why Murphy’s sign is not seen?