Task: Answer the multiple choice question.
Query: Which compound has a 2.637\% 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) Nc1cnc(Nc2ccc(Br)cc2)nc1N.O=S(=O)(O)O
(b) N#Cc1cc(N2CCCCC2)c([N+](=O)[O-])cc1C#N
(c) O=C(c1cccnc1)c1ncc(C(F)(F)F)cc1Cl
Answer: a. Nc1cnc(Nc2ccc(Br)cc2)nc1N.O=S(=O)(O)O
{#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#}
Nc1cnc(Nc2ccc(Br)cc2)nc1N.O=S(=O)(O)O
Nc1cnc(Nc2ccc(Br)cc2)nc1N.O=S(=O)(O)O
2-N-(4-bromophenyl)pyrimidine-2,4,5-triamine;sulfuric acid