Problem statement: Answer the multiple choice question.
Query: Which drug has a -2.413\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CCN(CC)S(=O)(=O)c1ccc(NN=C(C#N)C#N)cc1
[b] OC1CCN(C(c2ccc3ncccc3c2)c2nnnn2C2CCCCC2)CC1
Answer: a. CCN(CC)S(=O)(=O)c1ccc(NN=C(C#N)C#N)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-[2-(dicyanomethylidene)hydrazinyl]-N,N-diethylbenzenesulfonamide