Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 12.947\% 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 O=C1NC(=O)/C(=C/c2cccc(O)c2)N1
b CCOc1ccccc1N(CC(=O)NCC1CCCO1)C(=O)CCC(=O)Nc1cc(C)on1
Answer: a. O=C1NC(=O)/C(=C/c2cccc(O)c2)N1
{#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#}
O=C1NC(=O)/C(=C/c2cccc(O)c2)N1
O=C1NC(=O)/C(=C/c2cccc(O)c2)N1
(5Z)-5-[(5-hydroxyphenyl)methylidene]imidazolidine-2,4-dione