Task: Answer the multiple-choice question.
Question: Which compound exhibits a 6.839\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a Cc1cnc2cc(Cl)c(Cl)cc2n1
b Cc1ccc(C(=O)c2sc3nc4c(cc3c2N)CCC4)cc1
c COc1ccc(NC(=O)CSCC(=O)Nc2sccc2C#N)cc1
Answer: a. Cc1cnc2cc(Cl)c(Cl)cc2n1
{#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#}
Cc1cnc2cc(Cl)c(Cl)cc2n1
Cc1cnc2cc(Cl)c(Cl)cc2n1
6,7-dichloro-2-methylquinoxaline