Problem statement: Answer the multiple-choice question.
Question: Which drug has a 5.474\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] COc1cc2[nH]c3c(OC)ncnc3c2cc1OC
[b] Cc1cccc(OCC(=O)N2CCN(Cc3ccc4c(c3)OCO4)CC2)c1.O=C(O)C(=O)O
[c] COc1ccc(CCN2C(=S)N(C)C(=O)C2CC(=O)Nc2ccc(F)cc2)cc1
Answer: a. COc1cc2[nH]c3c(OC)ncnc3c2cc1OC
{#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#}
COc1cc2[nH]c3c(OC)ncnc3c2cc1OC
COc1cc2[nH]c3c(OC)ncnc3c2cc1OC
4,7,8-trimethoxy-5H-pyrimido[5,4-b]indole