Task: Answer the multiple choice question.
Query: Which drug exhibits a 16.964\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. O=C(O)c1ccccc1NC(=O)c1cc2ccccc2oc1=O
b. CSCc1nnc(NC(=O)c2ccc(S(=O)(=O)N3CCCCC3C)cc2)o1
c. CC(C)=NNC(=O)CN1C(=O)NC2NC(=O)NC21
d. COc1cc(NC(=O)c2ccc(=O)[nH]n2)cc(OC)c1OC
Answer: a. O=C(O)c1ccccc1NC(=O)c1cc2ccccc2oc1=O
{#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)c1ccccc1NC(=O)c1cc2ccccc2oc1=O
O=C(O)c1ccccc1NC(=O)c1cc2ccccc2oc1=O
N-(6-carboxyphenyl)-2-oxochromene-3-carboxamide