Task: Answer the multiple-choice question.
Query: Which compound exhibits a 1.579\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] c1cc(CCCc2ccncc2)ccn1
[b] CC(C)CNC(=O)c1ccc(COc2ccc(Cl)cc2Cl)o1
[c] O=C1c2ccccc2C(=O)N1CCSc1ccccc1
Answer: a. c1cc(CCCc2ccncc2)ccn1
{#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#}
c1cc(CCCc2ccncc2)ccn1
c1cc(CCCc2ccncc2)ccn1
4-(3-pyridin-4-ylpropyl)pyridine