Task: Answer the multiple choice question.
Query: Which drug exhibits a -1.986% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a O=S(=O)(Nc1ccc(-c2nc3cccnc3s2)cc1)c1cccs1
b CCOc1nc(-c2ccc(Cl)cc2Cl)ccc1C#N
Answer: b. CCOc1nc(-c2ccc(Cl)cc2Cl)ccc1C#N
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCOc1nc(-c2ccc(Cl)cc2Cl)ccc1C#N
CCOc1nc(-c2ccc(Cl)cc2Cl)ccc1C#N
6-(2,4-dichlorophenyl)-2-ethoxypyridine-3-carbonitrile