Nuclear wastes are separated into two broad categories: high level waste or low level waste. Consider the following statements regarding high level radioactive (HLR) waste.

1.       High-level radioactive waste results primarily from the fuel used by reactors to produce electricity.

2.       High-level radioactive waste is spent uranium fuel that has been used in a nuclear power reactor and is no longer efficient in generating power to the reactor to produce electricity. 

3.       Reprocessing of HLR waste separates residual uranium and unfissioned plutonium from the fission products. The uranium and plutonium can be used again as fuel.

Select the correct statement/s using the codes given below.