Task: Answer the multiple-choice question.
Question: Which compound exhibits a 5.904\% 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 other words.
Options:
(a) O=C(O)c1[nH]c2ccc([N+](=O)[O-])cc2c1-c1ccccc1
(b) CSC(=NC(C)c1ccccc1)NS(=O)(=O)c1cccs1
(c) Cc1ccc(CNC(=O)C2CCCN(S(=O)(=O)c3c(C)noc3/C=C/N(C)C)C2)cc1
(d) COc1ccc(-c2csc(Nc3ccccn3)n2)cc1
Answer: a. O=C(O)c1[nH]c2ccc([N+](=O)[O-])cc2c1-c1ccccc1
{#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(O)c1[nH]c2ccc([N+](=O)[O-])cc2c1-c1ccccc1
O=C(O)c1[nH]c2ccc([N+](=O)[O-])cc2c1-c1ccccc1
5-nitro-3-phenyl-1H-indole-2-carboxylic acid