Task: Answer the multiple choice question.
Question: Which drug exhibits a 13.883\% 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 Cc1ccc2nc(-c3ccc(SCC(=O)Nc4nnc(C)s4)nc3)[nH]c2c1
b Nc1ncncc1-c1ccc2ccccc2c1
Answer: b. Nc1ncncc1-c1ccc2ccccc2c1
{#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#}
Nc1ncncc1-c1ccc2ccccc2c1
Nc1ncncc1-c1ccc2ccccc2c1
5-naphthalen-2-ylpyrimidin-4-amine