Problem statement: Answer the multiple-choice question.
Question: Which drug has a -21.130% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) NC(N)=N/N=C/c1ccccc1Cl
b) Cc1ccc(S(=O)(=O)CCC(=O)OCC(=O)c2cc(C)n(C)c2C)cc1
Answer: a. NC(N)=N/N=C/c1ccccc1Cl
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
NC(N)=N/N=C/c1ccccc1Cl
NC(N)=N/N=C/c1ccccc1Cl
2-[(E)-(2-chlorophenyl)methylideneamino]guanidine