Task: Answer the multiple-choice question.
Question: Which drug exhibits a 21.008\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a.) COCC(=O)Nc1c(C(=O)Nc2ccc3c(c2)OCCO3)oc2ccccc12
b.) O=C(O)CN1C(=O)/C(=C\c2cc(Br)ccc2OCc2ccccc2F)SC1=S
c.) O=C(Nc1ccc(S(=O)(=O)N2CCCCCC2)cc1)c1[nH]ncc1[N+](=O)[O-]
Answer: b. O=C(O)CN1C(=O)/C(=C\c2cc(Br)ccc2OCc2ccccc2F)SC1=S
{#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#}
O=C(O)CN1C(=O)/C(=C\c2cc(Br)ccc2OCc2ccccc2F)SC1=S
O=C(O)CN1C(=O)/C(=C\c2cc(Br)ccc2OCc2ccccc2F)SC1=S
2-[(5E)-5-[[5-bromo-2-[(2-fluorophenyl)methoxy]phenyl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid