Problem statement: Answer the multiple choice question.
Question: Which compound has a 4.864\% 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) CCc1c(C)n([O-])c2c([n+]1=O)CCCCC2
b) COc1cc(/C=N/NC(=O)CCC(=O)Nc2ccc(C)cc2)ccc1O
c) Cc1cc([N+](=O)[O-])c(Cl)cc1NC(=O)C(C)C
d) Cc1cc(C(=O)N2CCCC(N3CCN(Cc4ccc5c(c4)OCO5)CC3)C2)n[nH]1
Answer: a. CCc1c(C)n([O-])c2c([n+]1=O)CCCCC2
{#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#}
CCc1c(C)n([O-])c2c([n+]1=O)CCCCC2
CCc1c(C)n([O-])c2c([n+]1=O)CCCCC2
3-ethyl-2-methyl-1-oxido-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyrazin-4-ium 4-oxide