Task: Answer the multiple choice question.
Question: Which drug has a 5.164\% 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 other words.
Options:
(a) CCOC(=O)c1c(-n2cccc2)sc2c1CCCC2=O
(b) O=C1CCCC2=C1C1(CCCCC1)N=C(Nc1nc3ccccc3s1)N2
(c) Cc1cccc(C)c1-n1nnnc1S(=O)(=O)Cc1ccccc1Cl
(d) O=C(COC(=O)c1ccccn1)c1ccc(Br)cc1
(e) CC(C)CCNc1nc2c(cc1C#N)COC(C)(C)C2
Answer: a. CCOC(=O)c1c(-n2cccc2)sc2c1CCCC2=O
{#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)c1c(-n2cccc2)sc2c1CCCC2=O
CCOC(=O)c1c(-n2cccc2)sc2c1CCCC2=O
ethyl 7-oxo-2-pyrrol-1-yl-5,6-dihydro-4H-1-benzothiophene-3-carboxylate