Which of the following ranks the molecules BeCl₂, NCl₃, and CCl₄ in order of their bond angles, from smallest to largest?
a) BeCl₂ < NCl₃ < CCl₄
b) BeCl₂ < CCl₄ < NCl₃
c) CCl₄ < NCl₃ < BeCl₂
d) NCl₃ < CCl₄ < BeCl₂