Consider Wiggle Formula $w(t, x)=f(\mathrm{bx}+\mathrm{ct})$ For a Transverse Wave, Where $b$ And $c$

Multiple Choice

Consider wiggle formula $w(t, x) =f(\mathrm{bx}+\mathrm{ct})$ for a transverse wave, where $b$ and $c$ are constants and $f()$ is some arbitrary function. Is this a traveling wave model? If so, in what direction does it travel?

A) In the $+x$ direction.
B) In the $-x$ direction.
C) The wave does not move.
D) In the $y$ or $z$ direction because the wave is transverse.