Task: Answer the multiple choice question.
Question: Which compound has a -0.703\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a CCCC(C)C(=O)NC1CCSC1=O
b CC(C)(C)OC(=O)N1CCC(C(=O)N2CCC[C@H]2C(=O)O)CC1
c Cl.OC(COCCOc1ccc(Br)cc1)CN1CCCCC1
d CC(c1ccccc1)c1nnc(NC(=O)Nc2ccccc2F)s1
Answer: a. CCCC(C)C(=O)NC1CCSC1=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#}
CCCC(C)C(=O)NC1CCSC1=O
CCCC(C)C(=O)NC1CCSC1=O
2-methyl-N-(2-oxothiolan-3-yl)pentanamide