Task: Answer the multiple choice question.
Question: Which compound has a -8.520\% 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] COc1ccc2nc(C)c3c(c2c1)OC(C)C3
[b] CCCCN(C)C(=O)c1ccc(S(=O)(=O)N2CCOCC2)cc1
[c] Cc1cc(N(CC(=O)NC(C)C)S(C)(=O)=O)ccc1Br
[d] CCn1c(C(O)c2ccc3c(c2)OCO3)nc2ccccc21
Answer: a. COc1ccc2nc(C)c3c(c2c1)OC(C)C3
{#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#}
8-methoxy-2,4-dimethyl-2,3-dihydrofuro[3,2-c]quinoline