Task: Answer the multiple-choice question.
Question: Which compound exhibits a 20.680\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) COc1ccc2c(c1)c(=O)c(C(=O)c1ccc(Cl)cc1)cn2CC(=O)Nc1ccc(F)cc1
(b) C[C@@H]1CC[C@@]2(O[C@@H](CCO)C[C@@H](O)[C@@H]2O)O1
(c) C=C1CCC[C@]2(C)C[C@H]3OC(=O)C(CN4CC(C)OC(C)C4)[C@H]3C[C@@H]12
(d) Cc1nc(NC(=O)c2ccc(F)cc2)sc1C(=O)Nc1ccc2c(c1)CCC2
Answer: b. C[C@@H]1CC[C@@]2(O[C@@H](CCO)C[C@@H](O)[C@@H]2O)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#}
C[C@@H]1CC[C@@]2(O[C@@H](CCO)C[C@@H](O)[C@@H]2O)O1
C[C@@H]1CC[C@@]2(O[C@@H](CCO)C[C@@H](O)[C@@H]2O)O1
(2R,5S,7S,9R,10S)-7-(2-hydroxyethyl)-2-methyl-1,6-dioxaspiro[4.5]decane-9,10-diol