Task: Answer the multiple-choice question.
Query: Which drug exhibits a 17.143\% 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. O=C(CCl)Oc1ccc2occ(C(=O)c3cccs3)c2c1
b. O=C(Nc1ccccc1Cl)C1CC(=O)n2c(nc3ccccc32)N1
c. CCCCn1c(-c2cccs2)nc2nc3ccccc3nc21
Answer: b. O=C(Nc1ccccc1Cl)C1CC(=O)n2c(nc3ccccc32)N1
{#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=C(Nc1ccccc1Cl)C1CC(=O)n2c(nc3ccccc32)N1
O=C(Nc1ccccc1Cl)C1CC(=O)n2c(nc3ccccc32)N1
N-(2-chlorophenyl)-4-oxo-2,3-dihydro-1H-pyrimido[1,2-a]benzimidazole-2-carboxamide