Task: Answer the MCQ question.
Question: Which drug has a 18.140% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: Cc1ccc(-c2noc(-c3ccccc3C(=O)N3CCN(C)CC3)n2)cc1
b: CC1=[N+]([O-])C(C)(C)N(O)C1(C)C
Answer: b. CC1=[N+]([O-])C(C)(C)N(O)C1(C)C
{#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#}
CC1=[N+]([O-])C(C)(C)N(O)C1(C)C
CC1=[N+]([O-])C(C)(C)N(O)C1(C)C
3-hydroxy-2,2,4,4,5-pentamethyl-1-oxidoimidazol-1-ium