Some Flowers Have Distinctive Markings That Only Reflect Ultraviolet Wavelengths

Some flowers have distinctive markings that only reflect ultraviolet wavelengths of light and therefore are invisible to humans.Which statement about ultraviolet markings is not correct?

A) The ultraviolet markings are highly visible and attractive to bees.
B) Carotenoid pigments are responsible for the ultraviolet markings.
C) The ultraviolet markings often form a conspicuous central bull's eye or identify the best landing sites.
D) The ultraviolet markings repel birds and bats from the flowers.
E) Flowers with ultraviolet markings usually appear yellow or orange to humans.