Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 20.246\% 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 other words.
Options:
a.) C/C(=N\Nc1nccnc1Cl)c1ccc(O)cc1
b.) Cn1c(=O)n(C)c2cc(/C=N/NC(=O)c3cccc(Br)c3)ccc21
Answer: a. C/C(=N\Nc1nccnc1Cl)c1ccc(O)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#}
C/C(=N\Nc1nccnc1Cl)c1ccc(O)cc1
C/C(=N\Nc1nccnc1Cl)c1ccc(O)cc1
4-[(E)-N-[(3-chloropyrazin-2-yl)amino]-C-methylcarbonimidoyl]phenol