Task: Answer the multiple choice question.
Question: Which compound exhibits a 13.043\% 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, d, or e without using any additional words.
Options:
a: CCn1c(SCC(=O)NC2CC2)nnc1-c1ccc(F)cc1
b: CCOC(=O)c1sc(/N=C/N(C)C)nc1C
c: Cc1cc(NC(=O)CCN2C(=O)C3C4C=CC(C4)C3C2=O)c2ccccc2n1
d: Cc1ccc(S(=O)(=O)Nc2ccc(C(=O)N3CCCC3)cc2)cc1
e: CCOc1ccc(CCNC(=O)c2ccc(Cl)c(S(=O)(=O)N3CCOCC3)c2)cc1OCC
Answer: b. CCOC(=O)c1sc(/N=C/N(C)C)nc1C
{#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#}
CCOC(=O)c1sc(/N=C/N(C)C)nc1C
CCOC(=O)c1sc(/N=C/N(C)C)nc1C
ethyl 2-[(E)-dimethylaminomethylideneamino]-4-methyl-1,3-thiazole-5-carboxylate