Task: Answer the multiple choice question.
Query: Which compound exhibits a -4.487\% 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(/C=C/c1ccccc1[N+](=O)[O-])NCc1ccncc1
b.) C[C@@H](O)CC(=O)O
Answer: b. C[C@@H](O)CC(=O)O
{#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#}
C[C@@H](O)CC(=O)O
C[C@@H](O)CC(=O)O
(3R)-3-hydroxybutanoic acid