A developer needs a navigation bar that collapses into a hamburger menu on mobile but stays fully expanded on desktop. Which Bootstrap classes achieve this?
-
A
navbar-expand-lg on the nav and navbar-toggler for the button
-
B
navbar-collapse and navbar-menu on the nav element
-
C
nav-responsive and nav-hamburger on the nav element
-
D
navbar-fluid and navbar-toggle on the nav element