Cho sơ đồ chuyển hóa sau: X + H2O = Y + Z

$A. Ca{C}_2, C{O}_2, C_2{H}_2, Ca{\left(OH\right)}_2.$

$B. Ca{C}_2, C_2{H}_2, C{O}_2, Ca{\left(OH\right)}_2.$

$C. Ca{C}_2, C_2{H}_2, Ca{\left(OH\right)}_2, C{O}_2.$

$D. C{O}_2, C_2{H}_2, Ca{C}_2, Ca{\left(OH\right)}_2.$