Problem statement: Answer the multiple-choice question.
Question: Which drug has a -6.389\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a. O=C(c1ccc([N+](=O)[O-])cc1)N1CCN=C1SCc1ccccc1
b. Cc1cnc(NCCc2ccccc2)s1
c. Cc1cc(Cl)c(S(=O)(=O)N2CCN(c3ccccc3)CC2)cc1OCC(N)=O
Answer: a. O=C(c1ccc([N+](=O)[O-])cc1)N1CCN=C1SCc1ccccc1
{#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(c1ccc([N+](=O)[O-])cc1)N1CCN=C1SCc1ccccc1
O=C(c1ccc([N+](=O)[O-])cc1)N1CCN=C1SCc1ccccc1
[O][=C][Branch1][S][C][=C][C][=C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=C][Ring1][=Branch2][N][C][C][N][=C][Ring1][Branch1][S][C][C][=C][C][=C][C][=C][Ring1][=Branch1]
(2-benzylsulfanyl-4,5-dihydroimidazol-1-yl)-(4-nitrophenyl)methanone