Task: Answer the multiple choice question.
Query: Which compound has a 18.444\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=C1c2c([N+](=O)[O-])cc([N+](=O)[O-])cc2S(=O)N1Cc1ccccc1
b) CC(=O)Nc1ccc(NS(=O)(=O)c2ccc(-c3cnc(C4CC4)o3)cc2)cc1
c) N#Cc1c(-n2cccc2/C=N/O)sc2c1CCCC2
Answer: a. O=C1c2c([N+](=O)[O-])cc([N+](=O)[O-])cc2S(=O)N1Cc1ccccc1
{#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=C1c2c([N+](=O)[O-])cc([N+](=O)[O-])cc2S(=O)N1Cc1ccccc1
O=C1c2c([N+](=O)[O-])cc([N+](=O)[O-])cc2S(=O)N1Cc1ccccc1
2-benzyl-4,6-dinitro-1-oxo-1,2-benzothiazol-3-one