Task: Answer the multiple-choice question.
Question: Which compound exhibits a 4.374% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: O=[N+]([O-])c1cc(Cl)c2cccnc2c1O
b: COc1cc(/C=C/C(=O)OCc2cn3cc(Cl)ccc3n2)ccc1O
c: COc1ccc(C(c2c[nH]c3ccccc23)c2c[nH]c3ccccc23)cc1O
d: O=C(Cc1cccs1)NCc1cn2ccccc2n1
e: COc1ccc(C2=Nn3c(nnc3-c3ccccc3)SC2)cc1OC
Answer: a. O=[N+]([O-])c1cc(Cl)c2cccnc2c1O
{#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#}
O=[N+]([O-])c1cc(Cl)c2cccnc2c1O
O=[N+]([O-])c1cc(Cl)c2cccnc2c1O
5-chloro-7-nitroquinolin-8-ol