Problem statement: Answer the MCQ question.
Question: Which drug has a 2.120\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a CCO/C=C1/C(=O)N(C)C(=O)c2cc(OC)ccc21
b C/C(=C\C(=O)c1ccc(Cl)cc1Cl)N(C)C
c C=C1C(=O)O[C@H]2C1CC[C@@](C)(O)C13C=CC(C)(C21)C1(C3)C(=O)O[C@@H]2C3C(C)=CCC3[C@](C)(O)C[C@H](OC(C)=O)C21
d Cn1cccc1C(=O)NCCc1ccc(Cl)cc1
e NC(=O)COC(=O)c1sc2ccccc2c1Cl
Answer: c. C=C1C(=O)O[C@H]2C1CC[C@@](C)(O)C13C=CC(C)(C21)C1(C3)C(=O)O[C@@H]2C3C(C)=CCC3[C@](C)(O)C[C@H](OC(C)=O)C21
{#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#}
[(2'R,4S,6R,9'S,9bR)-2',6-dihydroxy-2',6,9,11'-tetramethyl-6'-methylidene-2,7'-dioxospiro[4,5,6a,7,9a,9b-hexahydro-3aH-azuleno[4,5-b]furan-3,15'-8-oxatetracyclo[9.2.2.01,10.05,9]pentadec-12-ene]-4-yl] acetate