Task: Answer the MCQ question.
Question: Which compound has a -2.250% 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 COc1ccccc1CN1CCNC(=O)C1CC(=O)NC1CCCCCC1
b O=S(=O)(NCCc1ccccc1)c1ccc(Cl)nc1
c CCc1c(C)nc2c(OC)cccc2c1Cl
Answer: c. CCc1c(C)nc2c(OC)cccc2c1Cl
{#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#}
CCc1c(C)nc2c(OC)cccc2c1Cl
CCc1c(C)nc2c(OC)cccc2c1Cl
4-chloro-3-ethyl-8-methoxy-2-methylquinoline