Task: Answer the multiple choice question.
Query: Which drug has a 3.918\% human ether-à-go-go related gene (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(=S)c2[nH]c(SCCN3CCCC3)nc2n(C)c1=O
[b] NC(=O)c1cccnc1Nc1ccccc1Cl
Answer: b. NC(=O)c1cccnc1Nc1ccccc1Cl
{#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#}
NC(=O)c1cccnc1Nc1ccccc1Cl
NC(=O)c1cccnc1Nc1ccccc1Cl
2-(2-chloroanilino)pyridine-3-carboxamide