Task: Answer the MCQ question.
Question: Which drug exhibits a 11.500\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) NNc1ccc2nncn2n1
(b) CCSc1nnc(NC(=O)CSc2nnc(CNC(=O)c3ccccc3F)o2)s1
(c) Cc1cc(C(=O)CCC(=O)N(C)CC(=O)Nc2c(Cl)cccc2Cl)c(C)s1
(d) COC(=O)[C@@H]1C[C@]2(Br)c3ccccc3N(S(=O)(=O)c3ccccc3)[C@@H]2N1C(=O)OC
(e) O=C(CSc1nnc(CN2CCCCC2)n1-c1ccccc1)c1ccc2c(c1)OCO2
Answer: a. NNc1ccc2nncn2n1
{#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#}
NNc1ccc2nncn2n1
NNc1ccc2nncn2n1
[[1,2,4]triazolo[4,3-b]pyridazin-6-yl]hydrazine