Under the Indian Evidence Act, 1872, when the court has to form an opinion as to the electronic signature of a person, which of the following is relevant?

• A. opinion of the same person
• B. सूचना प्रौधोगिकी अधिनियम, 2000 के अंतर्गत नियुक्त नियंत्रक की राय
• C. Opinion of the Certifying Officer who has issued the Electronic Signature Certificate
• D. Both (b) and (c) above