A structure variable is similar to a class object in which of the following ways?

a$.$ all of these.

b$.$ It can be passed to a function or returned from a function.

c$.$ It has member data that is usually private and accessed through public member functions.

d$.$ Its data can be initialized with a constructor.

e$.$ Its data can be initialized with a constructor and it can be passed to a function or returned from a function, but not It has member data that is usually private and accessed through public member functions.