Task: Answer the multiple choice question.
Question: Which drug exhibits a 13.127\% 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] CCn1ccnc1CN(C)C(=O)c1cc(COc2c(F)cccc2F)on1
[b] CC1(C)C(=O)Nc2ccccc2N1C(=O)COC(=O)C12CC3CC(CC(O)(C3)C1)C2
[c] O=C(C1=C[C@H](c2ccc(Br)cc2)C[C@H](OCc2ccc(CO)cc2)O1)N1CCN(Cc2ccc3c(c2)OCO3)CC1
[d] CCOC1OC2C(CO)OC(n3cnc4c(N)ncnc43)C2O1
Answer: d. CCOC1OC2C(CO)OC(n3cnc4c(N)ncnc43)C2O1
{#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#}
CCOC1OC2C(CO)OC(n3cnc4c(N)ncnc43)C2O1
CCOC1OC2C(CO)OC(n3cnc4c(N)ncnc43)C2O1
[4-(6-aminopurin-9-yl)-2-ethoxy-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methanol