Task: Answer the multiple choice question.
Question: Which compound has a 19.378\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: O=C(CCCNc1ccccc1)N/N=C/c1cccs1
b: O=C1c2ccccc2C(=O)N1c1ccc(Cc2ccncc2)cc1
c: CCCCC(Sc1nc(C)c(Cc2ccccc2)c(=O)[nH]1)C(=O)O
d: COCCCNC(=O)Cn1cc(C(C)=O)c2ccccc21
Answer: c. CCCCC(Sc1nc(C)c(Cc2ccccc2)c(=O)[nH]1)C(=O)O
{#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#}
CCCCC(Sc1nc(C)c(Cc2ccccc2)c(=O)[nH]1)C(=O)O
CCCCC(Sc1nc(C)c(Cc2ccccc2)c(=O)[nH]1)C(=O)O
2-[(5-benzyl-4-methyl-6-oxo-1H-pyrimidin-2-yl)sulfanyl]hexanoic acid