Task: Answer the MCQ question.
Question: Which compound exhibits a 2.964\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) COc1ccccc1Nc1ncnc2c1c(C)c(C)n2CCO
(b) CC(=O)c1c(O)cc2n(c1=O)-c1ccc(Cl)cc1C2(C)C
(c) Cc1cccc(CN2CCC(Oc3ccc(C(=O)N4CCCC4)cc3)CC2)n1
(d) Cc1c(C(=O)OCC(=O)N2CCCC(C)C2)oc2ccccc12
Answer: b. CC(=O)c1c(O)cc2n(c1=O)-c1ccc(Cl)cc1C2(C)C
{#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#}
CC(=O)c1c(O)cc2n(c1=O)-c1ccc(Cl)cc1C2(C)C
CC(=O)c1c(O)cc2n(c1=O)-c1ccc(Cl)cc1C2(C)C
7-acetyl-2-chloro-8-hydroxy-10,10-dimethylpyrido[1,2-a]indol-6-one