Answer Posted / vijoeyz

C has three types of storage: automatic, static and
allocated.

Variable having block scope and without static specifier
have automatic storage duration.

Variables with block scope, and with static specifier have
static scope. Global variables (i.e, file scope) with or
without the the static specifier also have static scope.

Memory obtained from calls to malloc(), alloc() or realloc()
belongs to allocated storage class.

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