Task: Answer the multiple choice question.
Question: Which drug has a 8.439\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] O=c1[nH]c2ccccc2c(=O)n1Cc1ccco1
[b] CNc1nc(Cl)nc(Sc2nc(C)cc(C)n2)n1
[c] CCCCCOc1ccc(C)cc1CN(CCCl)CCCl.Cl
Answer: b. CNc1nc(Cl)nc(Sc2nc(C)cc(C)n2)n1
{#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#}
CNc1nc(Cl)nc(Sc2nc(C)cc(C)n2)n1
CNc1nc(Cl)nc(Sc2nc(C)cc(C)n2)n1
[C][N][C][=N][C][Branch1][C][Cl][=N][C][Branch1][S][S][C][=N][C][Branch1][C][C][=C][C][Branch1][C][C][=N][Ring1][Branch2][=N][Ring1][S]
4-chloro-6-(4,6-dimethylpyrimidin-2-yl)sulfanyl-N-methyl-1,3,5-triazin-2-amine