Identify the correctly matched pair(s) from the following based on the type of cut-back bitumen and fluxing agents used.

1. Rapid curing (RC) cut-backs : Kerosene

2. Medium curing (MC) cut-backs : Naptha or gasoline

3. Slow curing (SC) cut-backs : light oils

1
Only 1 and 2
2
Only 1
3
Only 1 and 3
4
Only 3

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