Task: Answer the multiple-choice question.
Question: Which compound exhibits a 3.969% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] C1CNCCN1.COc1cc(C(O)CO)ccc1O
[b] C=CCn1c(SCC(=O)NCCc2ccccc2)nc2c([nH]c3ccccc32)c1=O
Answer: a. C1CNCCN1.COc1cc(C(O)CO)ccc1O
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
C1CNCCN1.COc1cc(C(O)CO)ccc1O
C1CNCCN1.COc1cc(C(O)CO)ccc1O
1-(4-hydroxy-3-methoxyphenyl)ethane-1,2-diol;piperazine