Task: Answer the multiple-choice question.
Query: Which compound has a 2.599\% 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 Cc1nc(NC(=O)c2oc3ccccc3c2C)sc1C(=O)N(C)C
b CCC(CC)C(=O)NCc1ccccc1OC
c Oc1ccc(F)c2cccnc12
d Nc1nc(SCCN2C(=O)c3ccccc3C2=O)n[nH]1
Answer: b. CCC(CC)C(=O)NCc1ccccc1OC
{#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#}
2-ethyl-N-[(2-methoxyphenyl)methyl]butanamide