The correct option is
C Frugivores
Frugivorous describes a diet that consists primarily (though not necessarily exclusively) of fruit, including tree fruits as well as berries. Frugivorous birds often have specialized bills to help them eat fruit most efficiently by cutting through or removing the skin, husk or hull of preferred fruits. Frugivorous birds eat primarily fruit and can have a widely varied diet of different types of fruit. Many birds eat fruits including banana-quits, waxwings, horn-bills, cassowaries and toucans. Other species such as parrots and Orioles show a marked preference for fruit but also eat significant quantities of other foods.So, the correct option is 'Frugivores'.