Task: Answer the MCQ question.
Question: Which drug exhibits a 19.580% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] NNc1nc2c(Cl)c(Cl)ccc2s1
[b] COC(=O)c1ccc2c(=O)[nH]c(COC(=O)c3c(-c4ccccc4)noc3C)nc2c1
[c] CC(C)CNC(=O)c1ccccc1NC(=O)CN(c1ccc2c(c1)OCCO2)S(C)(=O)=O
[d] COc1ccc(S(=O)(=O)NCC2CCCO2)cc1Cl
Answer: a. NNc1nc2c(Cl)c(Cl)ccc2s1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
NNc1nc2c(Cl)c(Cl)ccc2s1
NNc1nc2c(Cl)c(Cl)ccc2s1
(4,5-dichloro-1,3-benzothiazol-2-yl)hydrazine