What painter of the romantic movement depicted wild untamed landscapes rocky seacoast in dark forest

Caspar  David Friedrich is  the  painter  of  the  Romantic  movement who  depicted  wild, untamed  landscapes, rocky  seacoast and  dark  forests. 

Caspar David Friedrich was a 19th-century German Romantic landscape painter regarded to as the major German artist of his generation.

He was noted for his mid-period allegorical landscapes generally featuring contemplative figures silhouetted against night skies, morning mists, barren trees or Gothic or megalithic ruins.

the answer would be choice c, cave paintings.