First India-Japan 2+2 Foreign and Defence Ministerial Meeting

Current context: The first India-Japan 2+2 Foreign and Defence Ministerial Meeting took place on 30th Nov 19 in New Delhi.

The delegation was led by the Defence Minister of India, Rajnath Singh and External Affairs Minister of India, Dr. S. Jaishankar, along with the Foreign Affairs Minister of Japan, MOTEGI Toshimitsu, and Minister of Defense of Japan, KONO Taro.
India has a similar ministerial level 2+2’ dialogue with the US also.
Key decisions taken at the meeting include:

The Ministers reiterated their commitment to advancing bilateral security cooperation based on the 2008 Joint Declaration on Security Cooperation and the 2009 Action Plan to advance Security Cooperation.
Concurred to proceed with coordination for the first India-Japan joint fighter aircraft exercise in Japan.
The Indian side looked forward to Japanese side dispatching a liaison officer at the IFC-IOR in the near future.
They underlined the need for all countries to ensure that all territory under their control is not used to launch terrorist attacks.

Question:

Q.1 India has conducted ‘ministerial level 2+2’ dialogue with which among the following country/countries?

a. 1 and 2
b. 2 and 3
c. 3 and 4
d. All 1,2,3 and 4