Problem statement: Answer the multiple-choice question.
Query: Which drug has a 2.294\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: Cc1ccc(CNS(=O)(=O)c2c(C)n(C)c(=O)n(C)c2=O)cc1
b: O[C@H]1COC2C1OC[C@@H]2O
c: CN(C)S(=O)(=O)c1cccc(NC(=O)c2cc(-c3cccs3)nn2-c2ccccc2)c1
Answer: b. O[C@H]1COC2C1OC[C@@H]2O
{#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#}
O[C@H]1COC2C1OC[C@@H]2O
O[C@H]1COC2C1OC[C@@H]2O
(3S,6S)-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-3,6-diol