Task: Answer the MCQ question.
Question: Which drug exhibits a -42.579\% 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 or b without using any other words.
Options:
a.) CCN(CC)CCn1c(NCc2ccco2)nc2ccccc21.Cl
b.) CN(C)S(=O)(=O)c1cccc2c1C(=O)c1ccccc1C2=O
Answer: a. CCN(CC)CCn1c(NCc2ccco2)nc2ccccc21.Cl
{#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#}
CCN(CC)CCn1c(NCc2ccco2)nc2ccccc21.Cl
CCN(CC)CCn1c(NCc2ccco2)nc2ccccc21.Cl
1-[2-(diethylamino)ethyl]-N-(furan-2-ylmethyl)benzimidazol-2-amine;hydrochloride