the image beneath displays a duck floating in a pond. why does it seem like there is an additional duck head in the water?

a. the duck disperses the light creating numerous small refractions that converge into an image
b. the ponds bottom absorbs the light and subsequently projects it towards the surface in the form of an image
c. the molecules in the atmosphere bend the light causing it to separate into two images
d. the ponds water reflects sunlight creating a mirrored image

d. the ponds water reflects sunlight creating a mirrored image

The additional duck head in the water appears to be a reflection of the duck above, caused by the water's surface acting as a mirror and reflecting the image of the duck back towards the viewer.