Suggested Answer
A. Sometimes it is marked by outwards pointing arrows (<= =>) with the reverse (collapsing so as to not take up the whole screen) being in the same spot, marked by inwards arrows (=> <=)
A. Sometimes it is marked by outwards pointing arrows (<= =>) with the reverse (collapsing so as to not take up the whole screen) being in the same spot, marked by inwards arrows (=> <=)