What is the most-abundant anion in a 2CaO.SiO2 melt?

Q. What is the most-abundant anion in a 2CaO.SiO₂ melt?

(A) (SiO₄) ^{4 –}              (B) (Si₂O₇) ^{6 –}             (C) (Si₃O₁₀) ^{8 –}            (D) (Si₄O₁₄) ^{10 –}

Ans: Option A