Consider the reaction represented by the following equation:
Na₂CO_3(aq) + 2HCl_(aq) → 2NaCl_(aq) + H₂O_(l) + CO_2(g)
What volume of 0.02 moldm^-3 of Na₂CO_3(aq) would be required to completely neutralize 40cm³ of 0.10 moldm^-3 of HCl?

• A.200cm³
• B.100cm³
• C.40cm³
• D.20cm³