What does the following code depicts?

i. System.Nullable count;
ii. bool? done;

A. Code i declares the objects of nullable of type Nullable defined in the System namespace

B. Code ii declares a nullable type in much shorter and in more commonly used way using '?'

C. Both Code i declares the objects of nullable of type Nullable defined in the System namespace & Code ii declares a nullable type in much shorter and in more commonly used way using '?'

D. None of the mentioned

Answer: Option C