Question

what is the most likely reason for this frog being called a \glass frog\?
a it will break like glass if it is picked up.
b it is made out of a special kind of glass.
c its eyes look like pieces of glass.
d it has skin that is as clear as glass.

Explanation:

La rana de cristal recibe ese nombre por su piel translúcida, que se asemeja a la claridad del vidrio, permitiendo ver sus órganos internos. Las otras opciones no se ajustan a sus características reales: no se rompe como vidrio, no está hecho de vidrio y sus ojos no tienen esa apariencia.

Answer:

D. It has skin that is as clear as glass.