Task: Answer the multiple choice question.
Question: Which drug has a -38.686% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) CNCCCc1ccccc1.Cl
b) CCCCn1c(CN2CCOCC2)nc2c1c(=O)n(C)c(=O)n2C
c) CCc1cc2c(=O)c(-c3nc4ccccc4n3C)c(C)oc2c(CN2CCCCC2)c1O
Answer: a. CNCCCc1ccccc1.Cl
{#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#}
CNCCCc1ccccc1.Cl
CNCCCc1ccccc1.Cl
N-methyl-3-phenylpropan-1-amine;hydrochloride