Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a -2.800\% 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 additional words.
Options:
(a) COCCCN(C(=S)Nc1cc(Cl)cc(Cl)c1)C(C)c1ccccn1
(b) O=C(c1ccc(C(F)(F)F)cc1)C1CCCN(C(=O)CCc2cnccn2)C1
(c) CCN(CC)c1nc2ccccc2c(N)c1-c1ccccc1.O=C(O)C(=O)O
(d) Cc1nc([N+](=O)[O-])c(Br)n1CC(=O)c1cccc([N+](=O)[O-])c1
Answer: d. Cc1nc([N+](=O)[O-])c(Br)n1CC(=O)c1cccc([N+](=O)[O-])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#}
Cc1nc([N+](=O)[O-])c(Br)n1CC(=O)c1cccc([N+](=O)[O-])c1
Cc1nc([N+](=O)[O-])c(Br)n1CC(=O)c1cccc([N+](=O)[O-])c1
2-(5-bromo-2-methyl-4-nitroimidazol-1-yl)-1-(3-nitrophenyl)ethanone