Task: Answer the multiple choice question.
Query: Which drug has a -6.220\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Cn1c(=O)n(C)c2cc([N+](=O)[O-])c(N3CCN(C(=O)c4ccc(F)cc4)CC3)cc21
(b) COc1ccc(S(=O)(=O)c2nnn(-c3cccc(Cl)c3)c2N)cc1
Answer: a. Cn1c(=O)n(C)c2cc([N+](=O)[O-])c(N3CCN(C(=O)c4ccc(F)cc4)CC3)cc21
{#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#}
Cn1c(=O)n(C)c2cc([N+](=O)[O-])c(N3CCN(C(=O)c4ccc(F)cc4)CC3)cc21
Cn1c(=O)n(C)c2cc([N+](=O)[O-])c(N3CCN(C(=O)c4ccc(F)cc4)CC3)cc21
5-[4-(4-fluorobenzoyl)piperazin-1-yl]-1,3-dimethyl-6-nitrobenzimidazol-2-one