Task: Answer the MCQ question.
Query: Which drug exhibits a 3.958\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a Nc1ccc(Nc2ccc([N+](=O)[O-])cc2[N+](=O)[O-])cc1
b O=S(=O)(NC1CCCCC1N1CCN(c2ccccc2F)CC1)c1ccc(Cl)cc1
c COC(=O)C1(CC2CC(c3ccncc3)=NO2)CCN(C(=O)OC(C)(C)C)CC1
d COc1ccc(NS(=O)(=O)c2ccc(C)c(C(=O)N3CC(C)OC(C)C3)c2)cc1
Answer: b. O=S(=O)(NC1CCCCC1N1CCN(c2ccccc2F)CC1)c1ccc(Cl)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=S(=O)(NC1CCCCC1N1CCN(c2ccccc2F)CC1)c1ccc(Cl)cc1
O=S(=O)(NC1CCCCC1N1CCN(c2ccccc2F)CC1)c1ccc(Cl)cc1
4-chloro-N-[2-[4-(2-fluorophenyl)piperazin-1-yl]cyclohexyl]benzenesulfonamide