[单选题]
A diatomic molecule hscy+7ox)fma*t.6/agu vb- d eaow-qz)rlj1sxsl9x / ) c6mkw8s $18 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 0 quantum state?
A. $9.0 \times 10^{-5} \; eV$
B. $6.0 \times 10^{-5} \; eV$
C. $3.0 \times 10^{-5} \; eV$
D. $0 \; eV$
