Problem statement: Answer the MCQ question.
Question: Which compound has a 12.542\% 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: Cc1ccc2c(-c3ccc([N+](=O)[O-])cc3)cc(=O)[nH]c2c1
b: C=CCCO[C@@H]1O[C@@H](C)[C@H](O)C[C@H]1O
c: CC(=O)Oc1ccc(-n2c(=O)c3ccccc3c3ccccc3c2=O)cc1
Answer: b. C=CCCO[C@@H]1O[C@@H](C)[C@H](O)C[C@H]1O
{#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=CCCO[C@@H]1O[C@@H](C)[C@H](O)C[C@H]1O
C=CCCO[C@@H]1O[C@@H](C)[C@H](O)C[C@H]1O
(2R,3R,5R,6S)-2-but-3-enoxy-6-methyloxane-3,5-diol