What is the language generated by the following grammar?

$S$ABC

$A$aAb$||$

$BbbBc||$

$CcCdd||$

$\{a^i{b}^j{c}^k{d}^l$:$i0,l0,j=i+2k,k=2l\}$

$(a^i{b}^j{c}^k{d}^l$:$i0,l0,kl,j=i+k-2l\}$

$\{a^i{b}^j{c}^k{d}^{2l}$:$i0,l0,kl,j=i+2(k-l)\}$

none of the other answers are correct