My approach:Firstly comma subject rule so after comma SUBJECT should come i.e.
,Section 497 is required here.
So we can eliminate ACD
Secondly,
BETWEEN B & E..... split is between "IS" and "IN" I found "IN" better so chose B option
The court concluded that not only in treating adultery as an offence tantamount to the state entering the private realm, but also Section 497 erred in treating women as chattel.
A) The court concluded that not only in treating adultery as an offence tantamount to the state entering the private realm,
but also Section 497 erred in treating women as chattel.
B) The court concluded that not only
in treating adultery as an offence tantamount to the state entering the private realm,
Section 497 further erred in treating women as chattel.
C) The court concluded that not only is treating adultery as an offence tantamount to the state entering the private realm,
but also Section 497 further erred is treating women as chattel.
D) The court concluded that not only is treating adultery as an offence tantamount to the state entering the private realm,
but also Section 497 in treating women as chattel.
E) The court concluded that not only
is treating adultery as an offence tantamount to the state entering the private realm,
Section 497 further erred in treating women as chattel.