Task: Answer the multiple choice question.
Question: Which drug exhibits a 2.577\% 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] COc1ccc2oc(=O)c(C(=O)NCc3ccccc3)cc2c1
[b] N#Cc1c(N)n(-c2ccc(N)cc2)c2nc3ccccc3nc12
[c] COCC(=O)N(Cc1nc2sc(C)c(C)c2c(=O)[nH]1)C1CCCCC1
[d] COc1cc(C(=O)Nc2cccc(S(=O)(=O)NCc3ccco3)c2)cc(OC)c1OC
Answer: a. COc1ccc2oc(=O)c(C(=O)NCc3ccccc3)cc2c1
{#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#}
COc1ccc2oc(=O)c(C(=O)NCc3ccccc3)cc2c1
COc1ccc2oc(=O)c(C(=O)NCc3ccccc3)cc2c1
N-benzyl-6-methoxy-2-oxochromene-3-carboxamide