Problem statement: Answer the MCQ question.
Query: Which compound exhibits a -1.499\% 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 other words.
Options:
[a] Nc1cccc2nc3ccccc3cc12
[b] Cc1cc(C)nc(N2CCCC(C(=O)Nc3cccc(Cl)c3)C2)n1
Answer: a. Nc1cccc2nc3ccccc3cc12
{#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#}
Nc1cccc2nc3ccccc3cc12
Nc1cccc2nc3ccccc3cc12
acridin-1-amine