Inside a uniform spherical shell:
$(a)$ The gravitational field is zero.
$(b)$ The gravitational potential is zero.
$(c)$ The gravitational field is same everywhere.
$(d)$ The gravitational potential is same everywhere.
$(e)$ All of the above.
Choose the most appropriate answer from the options given below:

• A
  $(a), (c)$ and $(d)$ only
• B
  $(e)$ only
• C
  $(a), (b)$ and $(c)$ only
• D
  $(b), (c)$ and $(d)$ only