Task: Answer the multiple choice question.
Query: Which compound exhibits a -5.643% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: O=[N+]([O-])C12CNCN(CN(Cc3ccccc3)C1)C2
b: COc1ccc(S(=O)(=O)N2CCOC2CNC(=O)C(=O)NCCc2c[nH]c3ccccc23)cc1
c: CCOc1ccc(C2c3c(oc4ccccc4c3=O)C(=O)N2CCCN2CCOCC2)cc1OCC
d: O=C(c1ccc(Br)cc1)c1coc2ccc(O)cc12
Answer: d. O=C(c1ccc(Br)cc1)c1coc2ccc(O)cc12
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(c1ccc(Br)cc1)c1coc2ccc(O)cc12
O=C(c1ccc(Br)cc1)c1coc2ccc(O)cc12
(4-bromophenyl)-(5-hydroxy-1-benzofuran-3-yl)methanone