Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a -0.995\% 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) O=C(CCCN1C(=O)c2cccc3cccc(c23)C1=O)N1CCN(c2ccccc2O)CC1
b) CCN(CC)S(=O)(=O)c1cc(F)ccc1OC
Answer: b. CCN(CC)S(=O)(=O)c1cc(F)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#}
N,N-diethyl-5-fluoro-2-methoxybenzenesulfonamide