Why would Subway$$s move to cut back the amount of salt in their sandwiches lead to other fast$-$casual companies examining whether they need to do the same?

Most of their customer bases are middle age, so there would be a demographics concern

There was a societal shift towards healthier eating, so there would be a macro$-$ environment concern

There was a societal shift towards healthier eating, so there would be a competitive$/$industry environment concern

All of the above

Salt is bad for you