Task: Answer the MCQ question.
Question: Which compound exhibits a -5.845\% 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) N#Cc1ccc(CNc2cnccn2)cc1
b) COc1ccccc1CN1CCCC(C(=O)c2ccccc2SC)C1
Answer: a. N#Cc1ccc(CNc2cnccn2)cc1
{#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#}
N#Cc1ccc(CNc2cnccn2)cc1
N#Cc1ccc(CNc2cnccn2)cc1
4-[(pyrazin-2-ylamino)methyl]benzonitrile