Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 2.338\% 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) Cc1ccc(C(=O)COC(=O)c2cc(Cl)nc3ccccc23)cc1C
b) O=[N+]([O-])c1ccc(S(=O)(=O)N2CCSC2c2ccco2)cc1
c) O=C(Oc1ccc([N+](=O)[O-])cc1)c1cncc(Br)c1
Answer: c. O=C(Oc1ccc([N+](=O)[O-])cc1)c1cncc(Br)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(Oc1ccc([N+](=O)[O-])cc1)c1cncc(Br)c1
O=C(Oc1ccc([N+](=O)[O-])cc1)c1cncc(Br)c1
(4-nitrophenyl) 5-bromopyridine-3-carboxylate