Task: Answer the multiple choice question.
Query: Which drug exhibits a 15.783\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: O=C(CSc1nc(O)cc(=O)n1-c1ccccc1)Nc1ccc2c3c(cccc13)CC2
b: CC(C)(C)n1nnnc1C(c1cccs1)N(Cc1cccnc1)CC1CCCO1
c: Cc1c(Cl)cnc(NC(=O)COC(=O)c2ccc(S(=O)(=O)NCc3ccco3)cc2)c1Cl
d: OCC[C@@H]1C[C@@H](O)[C@H](O)[C@]2(CCc3ccccc3O2)O1
Answer: d. OCC[C@@H]1C[C@@H](O)[C@H](O)[C@]2(CCc3ccccc3O2)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(CCc3ccccc3O2)O1
OCC[C@@H]1C[C@@H](O)[C@H](O)[C@]2(CCc3ccccc3O2)O1
(2R,3'S,4'R,6'R)-6'-(2-hydroxyethyl)spiro[3,4-dihydrochromene-2,2'-oxane]-3',4'-diol