Answer:
The words I would choose are avis, curso, and rotundus.
Explanation:
The reason for that choice is simple. We need to describe a bird (avis) that runs around (curso) in circles (rotundus). Those are the best options among the one in the list.
The use of Greek or Latin names for fauna and flora was systematized by Carl Linneaus in the 18th century. Linneaus was a Swedish naturalist who created a hierarchical systems of grouping animals and plants. The names are, however, constituted of two parts - in this question, we were asked to choose three words -, being called binomial nomenclature (two-name naming system). The names usually indicate what animal species that is plus a characteristic is possesses. For instance, the Asian tiger mosquito is called Aedes albopictus - aedes means mosquito, albopictus means painted white. As we can see, the word albopictus is an agglutination of two words (albo for white, pictus for painting). We could, thus, do the same to name our bird. So, the silly bird that runs around in circles could be called Avis cursorotundus.
