Task: Answer the MCQ question.
Query: Which drug has a -6.954\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) Nc1nc2ccccc2nc1N1CCCC1
(b) CCOc1ccc(N2C(=O)CC(SCCN)C2=O)cc1.Cl
Answer: a. Nc1nc2ccccc2nc1N1CCCC1
{#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#}
Nc1nc2ccccc2nc1N1CCCC1
Nc1nc2ccccc2nc1N1CCCC1
3-pyrrolidin-1-ylquinoxalin-2-amine