Task: Answer the multiple-choice question.
Query: Which drug exhibits a 4.186\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] Cc1nc2ccccc2n1CCCOc1ccccc1
[b] Cc1cccc(N(CC(=O)NC2CCCCC2)C(=O)Cn2nnc(-c3ccc(C)o3)n2)c1
Answer: a. Cc1nc2ccccc2n1CCCOc1ccccc1
{#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#}
Cc1nc2ccccc2n1CCCOc1ccccc1
Cc1nc2ccccc2n1CCCOc1ccccc1
2-methyl-1-(3-phenoxypropyl)benzimidazole