Task: Answer the multiple-choice question.
Question: Which drug has a 15.828\% 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. COc1ccc(C2C(C(=O)Nc3cc(C)on3)c3ccccc3C(=O)N2C)cc1OC
b. O=C(c1ccc(S(=O)(=O)c2cccc(Cl)c2)c([N+](=O)[O-])c1)N1CCN(Cc2ccccc2)CC1
c. O=C(CCCC(=O)NC1CCCC1)NC1CCCC1
d. CC1Sc2ccc(S(=O)(=O)CCC(=O)NC3CCCCCC3)cc2NC1=O
Answer: b. O=C(c1ccc(S(=O)(=O)c2cccc(Cl)c2)c([N+](=O)[O-])c1)N1CCN(Cc2ccccc2)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=C(c1ccc(S(=O)(=O)c2cccc(Cl)c2)c([N+](=O)[O-])c1)N1CCN(Cc2ccccc2)CC1
O=C(c1ccc(S(=O)(=O)c2cccc(Cl)c2)c([N+](=O)[O-])c1)N1CCN(Cc2ccccc2)CC1
(4-benzylpiperazin-1-yl)-[4-(3-chlorophenyl)sulfonyl-3-nitrophenyl]methanone