Task: Answer the multiple-choice question.
Question: Which drug exhibits a 16.500\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] N#CCC(=O)c1ccccc1Oc1ccc(Cl)cc1
[b] Cc1nn(C)c(C(=O)NNC(=S)NCc2ccco2)c1Cl
[c] O=C(CN1C(=O)NC2(CCCC2)C1=O)Nc1nc2ccc(F)cc2s1
[d] Cc1c(Cl)c([N+](=O)[O-])nn1CC(=O)NC(C)C1CC2CCC1C2
Answer: a. N#CCC(=O)c1ccccc1Oc1ccc(Cl)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#}
N#CCC(=O)c1ccccc1Oc1ccc(Cl)cc1
N#CCC(=O)c1ccccc1Oc1ccc(Cl)cc1
[N][#C][C][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][=C][C][=C][Branch1][C][Cl][C][=C][Ring1][#Branch1]
3-[2-(4-chlorophenoxy)phenyl]-3-oxopropanenitrile