Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a -0.278\% 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: N=c1c(C(=O)NC2CCCC2)cc2c(=O)n3ccccc3nc2n1CCCN1CCOCC1
b: CCn1nnnc1SCC(=O)c1cc(OC)ccc1OC
Answer: b. CCn1nnnc1SCC(=O)c1cc(OC)ccc1OC
{#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#}
CCn1nnnc1SCC(=O)c1cc(OC)ccc1OC
CCn1nnnc1SCC(=O)c1cc(OC)ccc1OC
1-(2,5-dimethoxyphenyl)-2-(1-ethyltetrazol-5-yl)sulfanylethanone