Task: Answer the MCQ question.
Question: Which compound has a 10.652\% 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 CCCc1[nH][nH]c(=O)c1C(c1cccc(Cl)c1)C(C#N)C#N
b C=CCNc1nc(N)c([N+](=O)[O-])c(Nc2cccc(Cl)c2)n1
c CCOc1cc(/C=N/Nc2nc(Nc3ccccc3)nc(N3CCCCC3)n2)ccc1OCC(=O)O
d Cc1c(CCOC(=O)c2cc([N+](=O)[O-])cc([N+](=O)[O-])c2)sc[n+]1CC(=O)c1ccc(Br)cc1.[Br-]
Answer: a. CCCc1[nH][nH]c(=O)c1C(c1cccc(Cl)c1)C(C#N)C#N
{#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#}
CCCc1[nH][nH]c(=O)c1C(c1cccc(Cl)c1)C(C#N)C#N
CCCc1[nH][nH]c(=O)c1C(c1cccc(Cl)c1)C(C#N)C#N
2-[(3-chlorophenyl)-(3-oxo-5-propyl-1,2-dihydropyrazol-4-yl)methyl]propanedinitrile