Who co-chaired the 13th India-Vietnam Defence Security Dialogue along with his Vietnamese co-chair Sr Lt Gen Nguyen Chi Vinh, Deputy Defence Minister of Vietnam, in January 2021?

• A. Rajnath Singh
• B. Dr Ajay Kumar
• C. Nitin Gadkari
• D. J. P. Nadda
• E. Subrahmanyam Jaishankar