Task: Answer the multiple-choice question.
Question: Which compound exhibits a 13.141\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=c1c2oc3ccccc3c2ncn1Cc1ccccc1Cl
(b) COc1ccc(N(C(=O)Cn2nnc3ccccc32)C(C(=O)NC(C)(C)C)c2ccc(OC)c(O)c2)cc1
Answer: a. O=c1c2oc3ccccc3c2ncn1Cc1ccccc1Cl
{#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=c1c2oc3ccccc3c2ncn1Cc1ccccc1Cl
O=c1c2oc3ccccc3c2ncn1Cc1ccccc1Cl
3-[(2-chlorophenyl)methyl]-[1]benzofuro[3,2-d]pyrimidin-4-one