Problem statement: Answer the multiple choice question.
Question: Which drug has a 6.819\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. Clc1ccc2noc(-c3ccccc3)c2c1
b. CN(C(=O)CSc1nnc(C2CC2)n1C1CC1)C1(C#N)CCCCC1
Answer: a. Clc1ccc2noc(-c3ccccc3)c2c1
{#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#}
Clc1ccc2noc(-c3ccccc3)c2c1
Clc1ccc2noc(-c3ccccc3)c2c1
5-chloro-3-phenyl-2,1-benzoxazole