The correct option is C
South-west
Originally, at 4:30, the minute-hand of a clock will point towards the South and the hour-hand will point towards the South-East. It is given that the minute-hand is pointing towards the west, which means that the clock has been rotated by 90∘ in the clockwise direction. Hence, the hour-hand will also rotate in the clockwise direction by 90∘, thus will point towards the South-West direction.