Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 18.296\% 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 additional words.
Options:
[a] COc1ccc(-c2nn3c(-c4ccccn4)nnc3s2)cc1OC
[b] Brc1ccc2oc(-c3ccn[nH]3)cc2c1
Answer: a. COc1ccc(-c2nn3c(-c4ccccn4)nnc3s2)cc1OC
{#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#}
COc1ccc(-c2nn3c(-c4ccccn4)nnc3s2)cc1OC
COc1ccc(-c2nn3c(-c4ccccn4)nnc3s2)cc1OC
6-(3,4-dimethoxyphenyl)-3-pyridin-2-yl-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole