Task: Answer the multiple choice question.
Question: Which drug has a 2.494\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. Cc1nc2cc(Cl)c([N+](=O)[O-])cc2s1
b. COc1ccc(S(=O)(=O)NCc2cccs2)cc1
Answer: a. Cc1nc2cc(Cl)c([N+](=O)[O-])cc2s1
{#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#}
Cc1nc2cc(Cl)c([N+](=O)[O-])cc2s1
Cc1nc2cc(Cl)c([N+](=O)[O-])cc2s1
5-chloro-2-methyl-6-nitro-1,3-benzothiazole