Task: Answer the multiple choice question.
Question: Which compound exhibits a 3.321% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. Cc1sc2nc(CC(=O)N3CCCC3)[nH]c(=O)c2c1C
b. COc1ccc(C(=O)c2c3ccccc3[n+]([O-])n2CCC[NH3+])cc1.O=C([O-])C(F)(F)F
c. Cc1ccccc1NCC(=O)c1ccc(Br)cc1
d. CCOc1ccc(C2C(C(=O)c3ccco3)=C(O)C(=O)N2CCN2CCOCC2)cc1
Answer: a. Cc1sc2nc(CC(=O)N3CCCC3)[nH]c(=O)c2c1C
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Cc1sc2nc(CC(=O)N3CCCC3)[nH]c(=O)c2c1C
Cc1sc2nc(CC(=O)N3CCCC3)[nH]c(=O)c2c1C
5,6-dimethyl-2-(2-oxo-2-pyrrolidin-1-ylethyl)-3H-thieno[2,3-d]pyrimidin-4-one