Task: Answer the MCQ question.
Question: Which compound exhibits a 21.566\% 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) CN(CC(=O)NCc1ccccn1)S(=O)(=O)c1ccc(Cl)cc1
b) CCOc1cc(/C=N/NC(=O)C(N)=O)cc(Br)c1O
Answer: b. CCOc1cc(/C=N/NC(=O)C(N)=O)cc(Br)c1O
{#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#}
CCOc1cc(/C=N/NC(=O)C(N)=O)cc(Br)c1O
CCOc1cc(/C=N/NC(=O)C(N)=O)cc(Br)c1O
N'-[(E)-(3-bromo-5-ethoxy-4-hydroxyphenyl)methylideneamino]oxamide