Is there was difference between the C# and C programing?

Answer 1

C# is only object oriented language and C is structure oriented

Answer 2

There's a lot of difference. C# is powerful with the
.Net platform. C# is almost identical to JAVA and its Object Oriented.

C is a oldest language to be used even today.
C# is a modern day OOP Language.;)

Answer 3

It is OOP!