Final answer:
A spherical Tootsie Roll Pop has a hard shell.
Step-by-step explanation:
The correct option for the defining characteristics of a spherical Tootsie Roll Pop is option D: has a hard shell.
A Tootsie Roll Pop is a popular candy that consists of a hard candy shell on the outside and a chewy Tootsie Roll center on the inside. The hard candy shell is what gives it its spherical shape and provides the initial crunch when you bite into it.
Therefore, a spherical Tootsie Roll Pop has a hard shell.