Task: Answer the multiple-choice question.
Question: Which compound exhibits a 1.973\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a.) CCCC(NC(=O)c1ccco1)c1nc2ccccc2[nH]1
b.) Cc1cccc2sc(NC(=O)CSc3cn[nH]n3)nc12
c.) COc1ccc(CNC(=O)OCCN2CCN(S(=O)(=O)c3ccc(C)cc3)CCC2=O)cc1
Answer: a. CCCC(NC(=O)c1ccco1)c1nc2ccccc2[nH]1
{#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#}
CCCC(NC(=O)c1ccco1)c1nc2ccccc2[nH]1
CCCC(NC(=O)c1ccco1)c1nc2ccccc2[nH]1
N-[1-(1H-benzimidazol-2-yl)butyl]furan-2-carboxamide