Which of these radioactive waste elements would be stored at New Mexico's Waste Isolation Pilot Plant?
ACarbon: C (atomic number 6)
BLead: Pb (atomic number 82)
CUranium: U (atomic number 92)
DPlutonium: Pu (atomic number 94)
ACarbon: C (atomic number 6)
BLead: Pb (atomic number 82)
CUranium: U (atomic number 92)
DPlutonium: Pu (atomic number 94)