Concept:
Object-oriented languages support the concepts of classes, objects, inheritance, polymorphism and encapsulation.
Step 1: Check Python.
Python supports object-oriented programming.
\[
D \text{ is correct}
\]
Step 2: Check Perl.
Perl supports object-oriented programming features.
\[
B \text{ is correct}
\]
Step 3: Check Visual Basic.Net.
Visual Basic.Net is an object-oriented programming language.
\[
E \text{ is correct}
\]
Step 4: Check Fortran and COBOL.
Fortran and COBOL are traditionally procedural languages in this context.
\[
A \text{ and } C \text{ are not selected}
\]
\[
\therefore \text{Correct Answer is (C)}
\]