Task: Answer the multiple-choice question.
Question: Which compound exhibits a -16.501\% 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=C(c1ccc(Cl)cc1)C(Cn1cncn1)C(Sc1ccccc1)c1ccccc1
[b] CCn1c(SCc2nc3ccccc3[nH]2)nnc1-c1cccs1
Answer: b. CCn1c(SCc2nc3ccccc3[nH]2)nnc1-c1cccs1
{#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#}
CCn1c(SCc2nc3ccccc3[nH]2)nnc1-c1cccs1
CCn1c(SCc2nc3ccccc3[nH]2)nnc1-c1cccs1
2-[(4-ethyl-5-thiophen-2-yl-1,2,4-triazol-3-yl)sulfanylmethyl]-1H-benzimidazole