Task: Answer the multiple choice question.
Question: Which compound has a 4.925\% 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(O)c1ccccc1-c1ncc(-c2ccccc2)o1
(b) COc1cc2c(cc1OC)C(c1c(Cl)cccc1Cl)NC(=O)C2
Answer: a. O=C(O)c1ccccc1-c1ncc(-c2ccccc2)o1
{#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=C(O)c1ccccc1-c1ncc(-c2ccccc2)o1
O=C(O)c1ccccc1-c1ncc(-c2ccccc2)o1
2-(5-phenyl-1,3-oxazol-2-yl)benzoic acid