Task: Answer the multiple choice question.
Question: Which drug exhibits a 4.202\% 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: Cn1ncc(Br)c1C(=O)O
b: CCOC(=O)C1CCN(C(=O)C2CCCN(S(=O)(=O)c3ccc(OC)c(Cl)c3)C2)CC1
Answer: a. Cn1ncc(Br)c1C(=O)O
{#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#}
Cn1ncc(Br)c1C(=O)O
Cn1ncc(Br)c1C(=O)O
4-bromo-2-methylpyrazole-3-carboxylic acid