Task: Answer the multiple choice question.
Query: Which compound exhibits a 15.375\% 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.) O=C(NCc1ccc(Cl)cc1)C(=O)Nc1nccs1
b.) CCCn1c(SC(C)C(=O)N2CCOCC2)nc2ccc(Br)cc2c1=O
Answer: a. O=C(NCc1ccc(Cl)cc1)C(=O)Nc1nccs1
{#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#}
O=C(NCc1ccc(Cl)cc1)C(=O)Nc1nccs1
O=C(NCc1ccc(Cl)cc1)C(=O)Nc1nccs1
N-[(4-chlorophenyl)methyl]-N'-(1,3-thiazol-2-yl)oxamide