Problem statement: Answer the MCQ question.
Question: Which compound has a 9.213\% 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 additional words.
Options:
[a] CCCCn1nnnc1SCC(=O)N1CCOCC1
[b] COc1cc(C(=O)NNC(=O)c2ccc(S(=O)(=O)N3CCCCC3)cc2)cc(OC)c1OC
Answer: a. CCCCn1nnnc1SCC(=O)N1CCOCC1
{#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#}
CCCCn1nnnc1SCC(=O)N1CCOCC1
CCCCn1nnnc1SCC(=O)N1CCOCC1
2-(1-butyltetrazol-5-yl)sulfanyl-1-morpholin-4-ylethanone