Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 0.109\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a Cc1ccc(-c2nn(-c3ccccc3)cc2C(=O)Nc2cccc(S(=O)(=O)N3CCOCC3)c2)cc1
b COc1ccc(N)cc1C#N
c Cn1cccc1C(=O)OCc1csc(-c2ccccc2)n1
d O=C(NNc1ccccn1)c1ccccc1CC[N+](=O)[O-]
e CCNc1cc(S(=O)(=O)C(F)(F)F)ccc1N
Answer: b. COc1ccc(N)cc1C#N
{#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#}
5-amino-2-methoxybenzonitrile