Task: Answer the multiple choice question.
Question: Which drug exhibits a 6.437\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CCCCC1(CC)C(=O)NC(=O)NC1=Nc1ccc(OC)cc1
[b] Cc1ccc(NC(=S)NNC(=O)c2c([N+](=O)[O-])c(C)nn2C)cc1
Answer: a. CCCCC1(CC)C(=O)NC(=O)NC1=Nc1ccc(OC)cc1
{#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#}
CCCCC1(CC)C(=O)NC(=O)NC1=Nc1ccc(OC)cc1
CCCCC1(CC)C(=O)NC(=O)NC1=Nc1ccc(OC)cc1
5-butyl-5-ethyl-6-(4-methoxyphenyl)imino-1,3-diazinane-2,4-dione