Which of the following statements concerning animal skeletal designs is FALSE?
a) Humans have a plantigrade foot design, and some of the larger (but still not immense) plant-eating dinosaurs had pseudo plantigrade feet.
b) Fast-moving animals (like theropod dinosaurs) run on their toes rather than their whole foot, which helps to increase their stride.
c) Animals that rely heavily on speed tend to have shorter upper leg bones, with longer lower leg bones and greatly extended ankles.
d) All animals with unguligrade foot designs are slow moving because unguligrade foot designs are only used for carrying immense mass.
e) Cats and dogs can react much faster than humans can, not only because of their digitigrade stance (moving on toes) but also their limb pose.