Task: Answer the multiple choice question.
Query: Which drug has a 20.718\% 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] CCOc1ccc(NS(=O)(=O)c2c(C)nc3sc(CC)nn3c2=O)cc1
[b] Cc1ccc(S(=O)(=O)N(CC2CO2)c2ccccc2[N+](=O)[O-])cc1
[c] O=C(Cn1cncn1)c1ccc(F)cc1F
[d] CN(C)c1cccc(C(=O)NCC2(N3CCCCC3)CCCCC2)c1
Answer: c. O=C(Cn1cncn1)c1ccc(F)cc1F
{#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#}
O=C(Cn1cncn1)c1ccc(F)cc1F
O=C(Cn1cncn1)c1ccc(F)cc1F
1-(2,4-difluorophenyl)-2-(1,2,4-triazol-1-yl)ethanone