Task: Answer the MCQ question.
Question: Which compound has a -0.492\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a CCC(C)NC(=O)CSc1nc2ccccc2c(=O)n1CCCN1CCCCC1
b CC1(c2nnc(-c3ccc(Cl)cc3)o2)CC(c2ccc(Cl)cc2)=NO1
c CC1NCCC2(O)CCCCC12
Answer: c. CC1NCCC2(O)CCCCC12
{#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#}
CC1NCCC2(O)CCCCC12
CC1NCCC2(O)CCCCC12
1-methyl-2,3,4,5,6,7,8,8a-octahydro-1H-isoquinolin-4a-ol