Problem statement: Answer the multiple-choice question.
Question: Which drug exhibits a 25.057\% 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, c, or d without using any other words.
Options:
(a) CCCCNc1c(-c2cccc(SC3CCCCC3)c2)nc2ccc(Cl)cn12.O=C(O)C(F)(F)F
(b) O=c1c2ccccc2n2c(=S)[nH]nc2n1-c1ccccc1
(c) Cc1ccc(OCCC(=O)OCC(=O)NC2CCS(=O)(=O)C2)cc1
(d) CCN(CC(=O)NC1CCS(=O)(=O)C1)C(=O)c1ccc(S(=O)(=O)N(CC)CC)cc1
Answer: b. O=c1c2ccccc2n2c(=S)[nH]nc2n1-c1ccccc1
{#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#}
O=c1c2ccccc2n2c(=S)[nH]nc2n1-c1ccccc1
O=c1c2ccccc2n2c(=S)[nH]nc2n1-c1ccccc1
4-phenyl-1-sulfanylidene-2H-[1,2,4]triazolo[4,3-a]quinazolin-5-one