Task: Answer the MCQ question.
Query: Which compound exhibits a 12.575\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a.) CCOC(=O)CCCCC(=O)c1[nH]c(=O)[nH]c1CSc1nc2ccccc2[nH]1
b.) COc1ccc(S(=O)(=O)n2c(C)nc3ccccc32)cc1C
Answer: b. COc1ccc(S(=O)(=O)n2c(C)nc3ccccc32)cc1C
{#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#}
1-(4-methoxy-3-methylphenyl)sulfonyl-2-methylbenzimidazole