Final answer:
All frog species share horizontal pupils and webbed toes, facilitating their aquatic movement and terrestrial jumping.
Step-by-step explanation:
Frogs display a remarkable diversity across the more than 4,800 different species known to science. While they can range in size dramatically and be found in various habitats all over the world, certain characteristics are shared universally among all frog species. A defining trait of all frogs is that they have horizontal pupils and webbing between their toes.
This anatomy supports their proficient jumping abilities and aquatic lifestyle. Other common features include long hind legs, a tail-less body, three eyelid membranes, and a tympanum for hearing. The correct choice reflecting the common characteristics among all frogs is:
(d) Horizontal pupils and webbing between toes.