Task: Answer the multiple choice question.
Query: Which drug exhibits a -2.753\% 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: Cn1cccc1/C=N/n1cnnc1
b: Cc1ccc(Cl)c2c(N=Nc3ccccc3)c(O)[nH]c12
c: O=C(CNS(=O)(=O)c1ccc2c(c1)OCCCO2)N1CCN(c2ccc(F)cc2)CC1
Answer: a. Cn1cccc1/C=N/n1cnnc1
{#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#}
Cn1cccc1/C=N/n1cnnc1
Cn1cccc1/C=N/n1cnnc1
(E)-1-(1-methylpyrrol-2-yl)-N-(1,2,4-triazol-4-yl)methanimine