Task: Answer the MCQ question.
Query: Which compound has a 18.596\% 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 additional words.
Options:
a: CCC/C=N/NC(=O)CCCCC(=O)N/N=C/CCC
b: O=C(NC(=S)Nc1ccc2c(c1)OCCO2)c1ccccc1F
c: CCOC(=O)C1(CCOc2ccccc2)CCN(Cc2ccc(COC)o2)CC1
d: C=CCn1c(-c2cc(Cl)ccc2OC)n[nH]c1=S
Answer: a. CCC/C=N/NC(=O)CCCCC(=O)N/N=C/CCC
{#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#}
CCC/C=N/NC(=O)CCCCC(=O)N/N=C/CCC
CCC/C=N/NC(=O)CCCCC(=O)N/N=C/CCC
N,N'-bis[(E)-butylideneamino]hexanediamide