Which one of the following statements is most appropriate about 'Exercise Kavach'?

• A. It is a military exercise of the Indian Army only.
• B. It is a joint military exercise involving the Indian Army and the Indian Navy only.
• C. It is a joint military exercise involving the Indian Army, the Indian Navy and the Indian Air Force only.
• D. It is a joint military exercise involving the Indian Army, the Indian Navy, the Indian Air Force and also the Indian Coast Guard.