Task: Answer the multiple-choice question.
Question: Which compound has a 3.420\% 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] O=C1CC(NS(=O)(=O)c2cccnc2)CN1c1cccc(F)c1
[b] O=C(COc1coc(CN2CCc3ccccc3C2)cc1=O)Nc1ccc(Cl)cc1
[c] CSC1=N/C(=C\c2ccc(C)o2)C(=O)S1
[d] N#CC1=C(N)Oc2c(ccc3ccccc23)C1c1cccs1
Answer: d. N#CC1=C(N)Oc2c(ccc3ccccc23)C1c1cccs1
{#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#}
N#CC1=C(N)Oc2c(ccc3ccccc23)C1c1cccs1
N#CC1=C(N)Oc2c(ccc3ccccc23)C1c1cccs1
2-amino-4-(thiophen-2-yl)-4H-benzo[h]chromene-3-carbonitrile