Problem statement: Answer the multiple choice question.
Question: Which drug has a 1.333\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) COc1ccc(NC(=O)c2sc3ncn(CC(=O)N4CCCCC4)c(=O)c3c2C)cc1OC
(b) O=C(CN1CCCC1)Nc1ccc([N+](=O)[O-])cc1Cl
(c) Cc1ccc(NC(=O)CSc2nc3[nH]ncc3c(=O)[nH]2)c(C)c1
(d) O=[N+]([O-])c1ccc(C[n+]2ccccc2)cc1.[Br-]
Answer: b. O=C(CN1CCCC1)Nc1ccc([N+](=O)[O-])cc1Cl
{#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(CN1CCCC1)Nc1ccc([N+](=O)[O-])cc1Cl
O=C(CN1CCCC1)Nc1ccc([N+](=O)[O-])cc1Cl
N-(2-chloro-4-nitrophenyl)-2-pyrrolidin-1-ylacetamide