Task: Answer the MCQ question.
Query: Which compound has a -58.320\% 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 CCN1CCN(c2ccc([N+](=O)[O-])cc2C(=O)c2ccc(Cl)cc2)CC1
b CN1C2CCC1CC(NS(=O)(=O)c1ccc(C#N)cc1)C2
c COc1ccc(S(=O)(=O)Nc2c(O)c3ccccc3oc2=O)cc1
d Cl.Nc1nc2ccccc2n1C(=O)c1cccs1
Answer: a. CCN1CCN(c2ccc([N+](=O)[O-])cc2C(=O)c2ccc(Cl)cc2)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#}
CCN1CCN(c2ccc([N+](=O)[O-])cc2C(=O)c2ccc(Cl)cc2)CC1
CCN1CCN(c2ccc([N+](=O)[O-])cc2C(=O)c2ccc(Cl)cc2)CC1
(4-chlorophenyl)-[2-(4-ethylpiperazin-1-yl)-5-nitrophenyl]methanone