Task: Answer the multiple-choice question.
Question: Which compound exhibits a 8.421\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. COc1ccc(S(=O)(=O)N2CCOC23CCN(C(=O)c2c(F)cccc2Cl)CC3)cc1
b. CN1C2C=C3C(C#N)=C(N)C(C#N)(C#N)[C@@H](c4cccs4)C3C1CC2
c. CCCn1nc(C(=O)Nc2nnc(CC)s2)c2ccccc2c1=O
Answer: b. CN1C2C=C3C(C#N)=C(N)C(C#N)(C#N)[C@@H](c4cccs4)C3C1CC2
{#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#}
CN1C2C=C3C(C#N)=C(N)C(C#N)(C#N)[C@@H](c4cccs4)C3C1CC2
CN1C2C=C3C(C#N)=C(N)C(C#N)(C#N)[C@@H](c4cccs4)C3C1CC2
(3S)-5-amino-12-methyl-3-thiophen-2-yl-12-azatricyclo[7.2.1.02,7]dodeca-5,7-diene-4,4,6-tricarbonitrile