Problem statement: Answer the multiple-choice question.
Question: Which compound has a -3.386\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a Cn1c(NCc2c[nH]c3ccccc23)nc2ccccc21
b COC(=O)c1ccc(S(=O)(=O)N2CCc3ccccc3C2)cc1
Answer: a. Cn1c(NCc2c[nH]c3ccccc23)nc2ccccc21
{#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#}
Cn1c(NCc2c[nH]c3ccccc23)nc2ccccc21
Cn1c(NCc2c[nH]c3ccccc23)nc2ccccc21
N-(1H-indol-3-ylmethyl)-1-methylbenzimidazol-2-amine