Question

Which of the following makes the button appear pressed?

(a) .btn-link

(b) .disabled

(c) .active

(d) .btn-block

Answer 1

Right choice is (c) .active

To explain I would say: .active makes the button appear pressed, .disabled makes button disabled, .btn-link makes the button look like a link, .btn-block makes a block-level button, spans the full width of the parent element.