Task: Answer the MCQ question.
Query: Which drug exhibits a 2.553\% 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) N#C/C(=C\Nc1ccc2c(c1)OCCO2)C(=O)NCc1ccco1
(b) COC1=C(Nc2ccc(O)cc2)C(=O)c2ccccc2C1=O
(c) CCOc1cc(N2CCOCC2)c(OCC)cc1NC(=O)COC(=O)COc1ccc(C#N)cc1
(d) COC(=O)c1cc(C(=O)OC)n(Cc2ccc(C)cc2)c1C
Answer: b. COC1=C(Nc2ccc(O)cc2)C(=O)c2ccccc2C1=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#}
COC1=C(Nc2ccc(O)cc2)C(=O)c2ccccc2C1=O
COC1=C(Nc2ccc(O)cc2)C(=O)c2ccccc2C1=O
2-(4-hydroxyanilino)-3-methoxynaphthalene-1,4-dione