Task: Answer the MCQ question.
Query: Which drug has a 7.851\% 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 O=C(N/N=C/C=C/c1ccccc1[N+](=O)[O-])c1cccnc1
b CCSc1ncc(C#N)c(N)n1
c CC(Cc1ccccc1)[n+]1cc(/N=C(\[O-])N(C)C)on1.Cl
d CCOc1ccc2nc(SCC(=O)Nc3cc4c(cc3C(C)=O)OCO4)[nH]c2c1
Answer: b. CCSc1ncc(C#N)c(N)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#}
CCSc1ncc(C#N)c(N)n1
CCSc1ncc(C#N)c(N)n1
4-amino-2-ethylsulfanylpyrimidine-5-carbonitrile