Arrange the following substances in chronological order of t

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Arrange the following substances in chronological order of their first synthesis in lab :

1) Black gold

2) Fullerene

3) Graphene

4) Kevlar

Select correct answer from the codes given below:

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?) ???? ????

2) ??????

3) ???????

4) ???????

???? ??? ?? ????? ?? ??? ????? ?????:

[UPPSC 2019 GS P1]

1 2 3 4

१ २ ३ ४

4 2 3 1

2 4 3 1

२ ४ ३ १

4 1 2 3