Task: Answer the MCQ question.
Query: Which drug exhibits a 15.644\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] O=C(Nc1nc(-c2cccc([N+](=O)[O-])c2)cs1)c1cccc([N+](=O)[O-])c1C(=O)O
[b] Nc1nc2ccc(Cl)cc2s1
[c] COC(=O)[C@H](CCSC)NC(=O)N1CCC(C)CC1
Answer: b. Nc1nc2ccc(Cl)cc2s1
{#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#}
Nc1nc2ccc(Cl)cc2s1
Nc1nc2ccc(Cl)cc2s1
6-chloro-1,3-benzothiazol-2-amine