Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 13.879\% human ether-à-go-go related gene (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] Cc1ccc(NC(=O)c2cc(-c3cc(C)c(C)cc3O)n[nH]2)cc1C
[b] NNC(=O)c1cc2ccccc2[nH]1
[c] CCCOCC1CC(CCc2nc(=S)[nH][nH]2)C(=O)O1
Answer: b. NNC(=O)c1cc2ccccc2[nH]1
{#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#}
NNC(=O)c1cc2ccccc2[nH]1
NNC(=O)c1cc2ccccc2[nH]1
1H-indole-2-carbohydrazide