Correct Answer : Option (D) - United States
India and the US have set up the first ever secure communication link between the Indian Navy & US Central as well as Pacific Naval Commands under the COMCASA pact at New Delhi, India. As a result of the implementation of the COMCASA, US has also activated the Selective Availability Anti-Spoofing Module GPS system in some of C-130 and C-17 transport aircraft. About COMCASA: COMCASA - COMmunications, Compatibility And Security Agreement. It is the Indo-US military-information sharing pact and was signed at the 2+2 bilateral summit on 6th September, 2018. COMCASA is one of the three foundation agreements that need to be signed by a country with the United States to share high-end encrypted communication and satellite data. The other 2 pacts are: i) LEMOA (Logistics Exchange Memorandum of Agreement), ii) BECA (Basic Exchange and Cooperation Agreement).