Problem statement: Answer the MCQ question.
Query: Which drug exhibits a -5.313\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) O=C(c1cccc([N+](=O)[O-])c1)N1CCN(c2ncccn2)CC1
(b) N#C/C(=C\c1ccc(N2CCCCC2)c([N+](=O)[O-])c1)c1nn(-c2ccccc2)c(N)c1C#N
(c) CC(C)COC(=O)NC1c2ccccc2Oc2ccccc21
Answer: a. O=C(c1cccc([N+](=O)[O-])c1)N1CCN(c2ncccn2)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#}
O=C(c1cccc([N+](=O)[O-])c1)N1CCN(c2ncccn2)CC1
O=C(c1cccc([N+](=O)[O-])c1)N1CCN(c2ncccn2)CC1
oxido-oxo-[3-(4-pyrimidin-2-ylpiperazine-1-carbonyl)phenyl]azanium