Task: Answer the multiple choice question.
Query: Which drug exhibits a 6.594\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) O=C(Nc1nccs1)c1cc(Cl)ccc1[N+](=O)[O-]
(b) Cc1csc(=O)n1CCC(=O)OCC(=O)c1ccc(Br)cc1
(c) CN1/C(=C\C=C(/C#N)C(=O)Nc2ccccc2F)C(C)(C)c2ccccc21
(d) O=C(N/N=C/c1cccc(O)c1)c1ccc(COc2ccc3c(c2)CCC3)o1
(e) COc1ccc(S(=O)(=O)Nc2nc3n(n2)C(c2ccc(Cl)cc2)CC(=O)N3)cc1
Answer: a. O=C(Nc1nccs1)c1cc(Cl)ccc1[N+](=O)[O-]
{#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(Nc1nccs1)c1cc(Cl)ccc1[N+](=O)[O-]
O=C(Nc1nccs1)c1cc(Cl)ccc1[N+](=O)[O-]
5-chloro-2-nitro-N-(1,3-thiazol-2-yl)benzamide