Task: Answer the multiple choice question.
Query: Which drug exhibits a 19.567% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. COc1cccc(C2NC(=O)c3ccccc3O2)c1OC
b. COc1ccccc1Sc1ccccc1/C=N/NC(N)=O
Answer: a. COc1cccc(C2NC(=O)c3ccccc3O2)c1OC
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COc1cccc(C2NC(=O)c3ccccc3O2)c1OC
COc1cccc(C2NC(=O)c3ccccc3O2)c1OC
2-(2,3-dimethoxyphenyl)-2,3-dihydro-1,3-benzoxazin-4-one