Task: Answer the multiple-choice question.
Question: Which drug exhibits a 15.905\% 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 other words.
Options:
(a) Cn1cc(CN2CCCC(C(=O)c3cccs3)C2)c(-c2cccc(Cl)c2)n1
(b) CC(=O)C1=C(O)C(=O)N(CC#N)C1c1cccs1
Answer: b. CC(=O)C1=C(O)C(=O)N(CC#N)C1c1cccs1
{#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#}
CC(=O)C1=C(O)C(=O)N(CC#N)C1c1cccs1
CC(=O)C1=C(O)C(=O)N(CC#N)C1c1cccs1
2-[4-hydroxy-3-acetyl-5-oxo-2-(thiophen-2-yl)-2H-pyrrol-1-yl]acetonitrile