Problem statement: Answer the MCQ question.
Query: Which compound has a 6.292\% 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 Cc1ncc([N+](=O)[O-])n1CC(O)CCl
b C=CCn1c(C)cc(-c2csc(NC(=O)CCc3nc4ccccc4c(=O)[nH]3)n2)c1C
Answer: a. Cc1ncc([N+](=O)[O-])n1CC(O)CCl
{#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#}
Cc1ncc([N+](=O)[O-])n1CC(O)CCl
Cc1ncc([N+](=O)[O-])n1CC(O)CCl
1-chloro-3-(2-methyl-5-nitroimidazol-1-yl)propan-2-ol