Task: Answer the multiple choice question.
Question: Which drug exhibits a 19.477\% human ether-à-go-go related gene (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(CCCO)CCCCCCCCC[C@H]1N[C@H](CO)[C@@H](O)[C@@H]1O
b) COc1cc(NC(=O)CSCC(=O)Nc2cc(OC)cc(OC)c2)cc(OC)c1
Answer: a. O=C(CCCO)CCCCCCCCC[C@H]1N[C@H](CO)[C@@H](O)[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#}
O=C(CCCO)CCCCCCCCC[C@H]1N[C@H](CO)[C@@H](O)[C@@H]1O
O=C(CCCO)CCCCCCCCC[C@H]1N[C@H](CO)[C@@H](O)[C@@H]1O
13-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)pyrrolidin-2-yl]-1-hydroxytridecan-4-one