Task: Answer the multiple-choice question.
Query: Which drug exhibits a -53.724\% 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: Cc1ccc(C(=O)NCCc2ccccc2)cc1
b: O=C(C[n+]1cn(C(F)F)c2ccccc21)c1ccc(OC(F)F)cc1.[Br-]
c: Cc1cccc(C(=O)N[C@H](C(=O)Nc2ccc(C)c(S(=O)(=O)N(C)C)c2)C(C)C)c1
d: CN(C(=O)c1ccccc1C(=O)OCC(=O)NCc1ccccc1)C1CCCCC1
Answer: b. O=C(C[n+]1cn(C(F)F)c2ccccc21)c1ccc(OC(F)F)cc1.[Br-]
{#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(C[n+]1cn(C(F)F)c2ccccc21)c1ccc(OC(F)F)cc1.[Br-]
O=C(C[n+]1cn(C(F)F)c2ccccc21)c1ccc(OC(F)F)cc1.[Br-]
1-[4-(difluoromethoxy)phenyl]-2-[3-(difluoromethyl)benzimidazol-1-ium-1-yl]ethanone;bromide