Task: Answer the multiple choice question.
Query: Which compound has a 15.977\% 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: CCC(=O)OC1CC(C)N(C(=O)c2ccccc2)c2ccc(C)cc21
b: CC(=O)Oc1ccc2occ(-c3ccccc3)c2c1
c: CN1C(=O)C(CC(=O)Nc2ccc(F)cc2)N(NC(=O)c2cccc(F)c2)C1=S
d: O=C(COc1ccc(Br)cc1)Nc1ccc(S(=O)(=O)Nc2ccccn2)cc1
Answer: b. CC(=O)Oc1ccc2occ(-c3ccccc3)c2c1
{#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#}
CC(=O)Oc1ccc2occ(-c3ccccc3)c2c1
CC(=O)Oc1ccc2occ(-c3ccccc3)c2c1
(3-phenyl-1-benzofuran-5-yl) acetate