Task: Answer the multiple-choice question.
Question: Which drug exhibits a 6.263\% 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 CC(=O)NCCn1ccc2ccccc21
b COc1ccc2occ(C(=O)c3ccc(N)cc3)c2c1
c O=C(Nc1cccc([N+](=O)[O-])c1)c1ccc2snnc2c1
d CCN(C(=O)Cn1c(=O)oc2ccccc21)C1CCS(=O)(=O)C1
Answer: b. COc1ccc2occ(C(=O)c3ccc(N)cc3)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#}
COc1ccc2occ(C(=O)c3ccc(N)cc3)c2c1
COc1ccc2occ(C(=O)c3ccc(N)cc3)c2c1
(4-aminophenyl)-(5-methoxy-1-benzofuran-3-yl)methanone