Indian Navy Conducts TROPEX 2023

Current Context: The Indian Navy is conducting the 2023 edition of "Theatre Level Operational Readiness Exercise" (TROPEX), a significant biennial maritime exercise, in the Indian Ocean region (IOR).

• TROPEX 23 will take place from January to March 2023 over a three-month period. The exercise aims to "validate and refine" the Indian Navy's concept of "operations" and test overall combat capabilities.
• It includes the participation of all surface combatants of the Indian Navy, including destroyers, frigates, and corvettes, as well as submarines and aircraft.
• It facilitates operational-level interaction with the Indian Army, Indian Air Force (IAF), and Indian Coast Guard (ICG).
• The Indian Navy also held the biennial tri-service Amphibious Exercise (AMPHEX) 2023 in Kakinada, Andhra Pradesh, from January 17 to 22, 2023.
• The exercise was designed to improve interoperability and synergy by training elements from all three services (Indian Navy, Indian Army & IAF) in various aspects of amphibious operations.

Question: 

Q.1 Which Indian military division is conducting TROPEX 2023.
a. Army
b. Navy
c. Air Force
d. All of the above