Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a -1.455\% 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 Cc1ccc(/C=N/Nc2nnc(Cl)c3ccccc23)cc1
b CC(C)(CO)Cc1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1
c Cc1ccc(S(=O)(=O)ON=C2CCN(S(=O)(=O)c3ccccc3)CC2)cc1
d Cc1ccc(C)c(NC(=O)c2cnn3ccccc23)c1
Answer: a. Cc1ccc(/C=N/Nc2nnc(Cl)c3ccccc23)cc1
{#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#}
4-chloro-N-[(E)-(4-methylphenyl)methylideneamino]phthalazin-1-amine