Task: Answer the MCQ question.
Question: Which drug exhibits a 12.784\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=[N+]([O-])c1ccc(-c2cc(-c3ccc(Cl)cc3)n[nH]2)cc1
(b) CC(=O)Nc1ccc(Cl)c(C(N)=O)c1
Answer: b. CC(=O)Nc1ccc(Cl)c(C(N)=O)c1
{#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#}
CC(=O)Nc1ccc(Cl)c(C(N)=O)c1
CC(=O)Nc1ccc(Cl)c(C(N)=O)c1
[C][C][=Branch1][C][=O][N][C][=C][C][=C][Branch1][C][Cl][C][Branch1][=Branch1][C][Branch1][C][N][=O][=C][Ring1][#Branch2]
5-(acetylamino)-2-chlorobenzamide