Task: Answer the multiple choice question.
Query: Which drug exhibits a 18.986\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) COc1cccc(COC(=O)c2ccc3c(=O)n4c(nc3c2)CCC4)c1OC
(b) COc1cc(C2C3=C(CCCC3=O)Nc3c2c(C)nn3-c2cccc(C)c2)cc(OC)c1O
(c) Cc1ccc(Nc2nc3c(c(=O)[nH]c(=O)n3C)n2Cc2ccc(F)cc2)cc1
(d) O=C(COC(=O)c1cncc(Br)c1)NCc1ccccc1Cl
Answer: c. Cc1ccc(Nc2nc3c(c(=O)[nH]c(=O)n3C)n2Cc2ccc(F)cc2)cc1
{#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#}
Cc1ccc(Nc2nc3c(c(=O)[nH]c(=O)n3C)n2Cc2ccc(F)cc2)cc1
Cc1ccc(Nc2nc3c(c(=O)[nH]c(=O)n3C)n2Cc2ccc(F)cc2)cc1
7-[(4-fluorophenyl)methyl]-3-methyl-8-(4-methylanilino)purine-2,6-dione