Identify the correct passive voice for the sentence given below: Neeraj Chopra won gold medal in the Tokyo Olympic 2020.

(1) Gold medal won by Neeraj Chopra in the Tokyo Olympic 2020. This option is in passive voice, but the structure is not grammatically correct. "Gold medal" should be followed by "was" to form a proper passive voice sentence. So, this option is incorrect. (2) Gold medal had been won by Neeraj Chopra in the Tokyo Olympic 2020. This option uses the past perfect passive voice ("had been won"), which implies an action that was completed before another action in the past. However, there's no need for past perfect tense here, as the simple past tense ("was won") suffices. Thus, this option is incorrect. (3) Gold medal was won by Neeraj Chopra in the Tokyo Olympic 2020. This option correctly uses the passive voice with the structure "was won by Neeraj Chopra." The verb "won" is in the correct tense and form, Therefore, this option is correct. (4) Gold medal has been won by Neeraj Chopra in the Tokyo Olympic 2020. This option uses the present perfect passive voice ("has been won"), which implies an action that started in the past and continues into the present. However, the event being described (the Tokyo Olympics) is already in the past, so the simple past tense is more appropriate. Hence, this option is incorrect. In conclusion, option (3) "Gold medal was won by Neeraj Chopra in the Tokyo Olympic 2020" is the correct passive voice transformation of the given sentence.