Task: Answer the multiple choice question.
Query: Which compound exhibits a 19.757\% 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. Cn1ccsc1=NC(=O)c1ccc(S(C)(=O)=O)c([N+](=O)[O-])c1
b. CN(C)C(C)(C)C#CCC(c1ccccc1)c1ccccc1.Cl
c. CCc1nc2sc3c(=O)n(N)cnc3c2c2c1COC(C)(C)C2
d. Cc1cc(CC(C)C)n(-c2nc3ccccc3c(=O)n2OCC(=O)N(C)C)n1
Answer: a. Cn1ccsc1=NC(=O)c1ccc(S(C)(=O)=O)c([N+](=O)[O-])c1
{#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#}
Cn1ccsc1=NC(=O)c1ccc(S(C)(=O)=O)c([N+](=O)[O-])c1
Cn1ccsc1=NC(=O)c1ccc(S(C)(=O)=O)c([N+](=O)[O-])c1
4-methylsulfonyl-N-(3-methyl-1,3-thiazol-2-ylidene)-3-nitrobenzamide