A. Mikhail Gorbachev
B. Boris Yeltsin
C. Dmitry Medvedev
D. Vladimir Putin
🧠 Explanation:
The Geneva Accord was signed during Mikhail Gorbachev’s presidency, emphasizing international negotiation and political reforms. “Signed” is a past tense verb; “president” is a noun. Alternatives like “executed” or “ratified” could be used. Gorbachev’s policies contributed to ending Cold War tensions and fostering global diplomatic relations.