Task: Answer the multiple-choice question.
Question: Which drug exhibits a 3.639\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) O=C(Nc1cc(-c2ccccc2)[nH]n1)c1ccc(Cl)cc1
(b) O=C(CN(Cc1ccccc1)S(=O)(=O)c1ccc2c(c1)OCCO2)Nc1ccc2c(c1)OCCO2
(c) Cc1onc(-c2c(Cl)cccc2Cl)c1C(=O)NNc1ccccc1
Answer: a. O=C(Nc1cc(-c2ccccc2)[nH]n1)c1ccc(Cl)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#}
O=C(Nc1cc(-c2ccccc2)[nH]n1)c1ccc(Cl)cc1
O=C(Nc1cc(-c2ccccc2)[nH]n1)c1ccc(Cl)cc1
4-chloro-N-(5-phenyl-1H-pyrazol-3-yl)benzamide