Task: Answer the MCQ question.
Question: Which compound exhibits a 16.512\% 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 COc1ccc(C(=O)n2cc(C(C)=O)c3ccccc32)cc1
b S=C1NC2CCCCC2N1
Answer: b. S=C1NC2CCCCC2N1
{#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#}
S=C1NC2CCCCC2N1
S=C1NC2CCCCC2N1
1,3,3a,4,5,6,7,7a-octahydrobenzimidazole-2-thione