Task: Answer the multiple-choice question.
Question: Which compound exhibits a 21.176\% human ether-à-go-go related gene (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.) CCCCC(=O)Nc1ccc(C(=O)NCCc2ccccc2)cc1
b.) CC(C)(C)c1ccc(OCc2cnc(Cl)s2)cc1
Answer: b. CC(C)(C)c1ccc(OCc2cnc(Cl)s2)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#}
CC(C)(C)c1ccc(OCc2cnc(Cl)s2)cc1
CC(C)(C)c1ccc(OCc2cnc(Cl)s2)cc1
5-[(4-tert-butylphenoxy)methyl]-2-chloro-1,3-thiazole