Task: Answer the multiple-choice question.
Question: Which drug exhibits a -19.116\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: c1ccc(CCNc2ncnc3ccccc23)cc1
b: O=C(NC(=S)Nc1cccc(C(F)(F)F)c1)c1csnn1
Answer: a. c1ccc(CCNc2ncnc3ccccc23)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#}
c1ccc(CCNc2ncnc3ccccc23)cc1
c1ccc(CCNc2ncnc3ccccc23)cc1
N-(2-phenylethyl)quinazolin-4-amine