Task: Answer the multiple-choice question.
Query: Which compound exhibits a 15.980\% 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 or b without using any other words.
Options:
a: OCC[C@@H]1C[C@H](O)[C@@H](O)[C@@]2(Cc3ccccc3CO2)O1
b: CCOc1ccc(Nc2cc(C)nc(-n3nc(C)cc3C)n2)cc1
Answer: a. OCC[C@@H]1C[C@H](O)[C@@H](O)[C@@]2(Cc3ccccc3CO2)O1
{#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#}
OCC[C@@H]1C[C@H](O)[C@@H](O)[C@@]2(Cc3ccccc3CO2)O1
OCC[C@@H]1C[C@H](O)[C@@H](O)[C@@]2(Cc3ccccc3CO2)O1
(3R,3'R,4'S,6'R)-6'-(2-hydroxyethyl)spiro[1,4-dihydroisochromene-3,2'-oxane]-3',4'-diol