Option 1 -> India has space cooperation with Maldives, but INS-2B was not launched for this country.
Option 2 -> Bangladesh has its own satellite program with Indian support, but INS-2B was not launched for Bangladesh.
Option 3 -> Sri Lanka has benefited from India's space technology assistance, but INS-2B was not launched for Sri Lanka.
Option 4 -> India launched INS-2B satellite for Bhutan in 2022 and inaugurated the ground station in Thimphu in 2023 as part of bilateral space cooperation.
Hence, Bhutan -> INS-2B was launched on February 14, 2022, and the ground station was inaugurated in Thimphu in November 2023, strengthening India-Bhutan space technology partnership -> correct