Task: Answer the multiple-choice question.
Query: Which drug exhibits a 2.263\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] c1ccc(-n2nnnc2-n2cnc3ccccc32)cc1
[b] CCCCN(C(=O)Cc1cccs1)c1nnc(-c2cccnc2)s1
[c] COc1ccc(NC(=O)CSCc2ccc([N+](=O)[O-])cc2)cc1OC
Answer: a. c1ccc(-n2nnnc2-n2cnc3ccccc32)cc1
{#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#}
c1ccc(-n2nnnc2-n2cnc3ccccc32)cc1
c1ccc(-n2nnnc2-n2cnc3ccccc32)cc1
1-(1-phenyltetrazol-5-yl)benzimidazole