Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 4.763\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] O=C(Cc1ccc(Cl)cc1)Nc1cccc2ncccc12
[b] CC1(C)C(=O)OC(/C=C\c2ccccc2)C(C)(C)C1=O
Answer: b. CC1(C)C(=O)OC(/C=C\c2ccccc2)C(C)(C)C1=O
{#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#}
CC1(C)C(=O)OC(/C=C\c2ccccc2)C(C)(C)C1=O
CC1(C)C(=O)OC(/C=C\c2ccccc2)C(C)(C)C1=O
3,3,5,5-tetramethyl-6-[(Z)-2-phenylethenyl]oxane-2,4-dione