Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a -3.217\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a O=c1c2ccccc2oc2ncccc12
b O=C(N/N=C/c1c(O)n(-c2cccc3ccccc23)c(=O)[nH]c1=O)c1ccncc1
c COc1ccc(NC(=O)COc2ccc(C)c(C)c2)cc1S(=O)(=O)N1CCCCC1
d CCCOc1cccc(C2/C(=C(/O)c3ccc(F)cc3)C(=O)C(=O)N2CCN(C)C)c1
Answer: a. O=c1c2ccccc2oc2ncccc12
{#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=c1c2ccccc2oc2ncccc12
O=c1c2ccccc2oc2ncccc12
chromeno[2,3-b]pyridin-5-one