Task: Answer the multiple-choice question.
Question: Which compound has a 19.496\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] O=C(CO)C(O)C(O)C(O)CO
[b] CC1(C)Cc2ccccc2C(CSc2ccccc2C(=O)O)=N1
[c] COc1cccc2oc3ccc(C#Cc4ccccn4)cc3c(=O)c12
Answer: c. COc1cccc2oc3ccc(C#Cc4ccccn4)cc3c(=O)c12
{#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#}
COc1cccc2oc3ccc(C#Cc4ccccn4)cc3c(=O)c12
COc1cccc2oc3ccc(C#Cc4ccccn4)cc3c(=O)c12
1-methoxy-7-(2-pyridin-2-ylethynyl)xanthen-9-one