Task: Answer the multiple choice question.
Query: Which compound has a -2.752\% 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] CCOc1ccc(S(=O)(=O)N(C)c2ccc(OCC(=O)NCC3CCCO3)cc2)cc1
[b] CN1CCN(C(=O)C2=C[C@H](C(C)(C)C)C[C@H](OCCCCO)O2)CC1
[c] O=[N+]([O-])c1ccc(NNC(=S)Nc2ccccc2)cc1
Answer: c. O=[N+]([O-])c1ccc(NNC(=S)Nc2ccccc2)cc1
{#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=[N+]([O-])c1ccc(NNC(=S)Nc2ccccc2)cc1
O=[N+]([O-])c1ccc(NNC(=S)Nc2ccccc2)cc1
1-(4-nitroanilino)-3-phenylthiourea