Task: Answer the MCQ question.
Question: Which compound has a 21.034\% 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=C(NC(=O)c1ccccc1)OCC(F)(F)F
(b) COc1ccc(-c2noc(Cc3ccccc3OC)n2)cc1
Answer: b. COc1ccc(-c2noc(Cc3ccccc3OC)n2)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#}
3-(4-methoxyphenyl)-5-[(2-methoxyphenyl)methyl]-1,2,4-oxadiazole