Task: Answer the multiple choice question.
Question: Which compound has a 2.524\% 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=C1c2ccccc2C(=O)N1CCC1=CCCCC1
(b) O=C(Cc1ccc([N+](=O)[O-])cc1)NNC(=O)Nc1ccc(F)c(Cl)c1
(c) Oc1c(C=Nc2ccccc2Cl)[nH]c2ccccc12
Answer: b. O=C(Cc1ccc([N+](=O)[O-])cc1)NNC(=O)Nc1ccc(F)c(Cl)c1
{#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(Cc1ccc([N+](=O)[O-])cc1)NNC(=O)Nc1ccc(F)c(Cl)c1
O=C(Cc1ccc([N+](=O)[O-])cc1)NNC(=O)Nc1ccc(F)c(Cl)c1
1-(3-chloro-4-fluorophenyl)-3-[[2-(4-nitrophenyl)acetyl]amino]urea