Task: Answer the multiple choice question.
Query: Which compound exhibits a 0.551\% human ether-à-go-go related gene (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 CN1C(=O)/C(=C\c2ccco2)N=C1c1ccc(Cl)cc1Cl
b COc1ccccc1N1CCN(C(=O)c2cc(C(=O)N3CCN(c4ccccc4OC)CC3)cc([N+](=O)[O-])c2)CC1
c Cn1c(Cc2csc(N)n2)nnc1SCC(=O)NCc1ccccc1
d COC(=O)c1cc(C(=O)c2ccc(Cl)cc2Cl)cn1C
Answer: a. CN1C(=O)/C(=C\c2ccco2)N=C1c1ccc(Cl)cc1Cl
{#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#}
CN1C(=O)/C(=C\c2ccco2)N=C1c1ccc(Cl)cc1Cl
CN1C(=O)/C(=C\c2ccco2)N=C1c1ccc(Cl)cc1Cl
(5E)-2-(2,4-dichlorophenyl)-5-(furan-2-ylmethylidene)-3-methylimidazol-4-one