Problem statement: Answer the MCQ question.
Query: Which compound exhibits a 12.957\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=C(NNC(=O)c1cc([N+](=O)[O-])ccc1Cl)c1cccs1
b: CCC(C)[C@H](NC(=O)[C@@H]1CSC2c3ccccc3C(=O)N21)C(=O)N1CCCCC1
Answer: a. O=C(NNC(=O)c1cc([N+](=O)[O-])ccc1Cl)c1cccs1
{#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#}
O=C(NNC(=O)c1cc([N+](=O)[O-])ccc1Cl)c1cccs1
O=C(NNC(=O)c1cc([N+](=O)[O-])ccc1Cl)c1cccs1
N'-(2-chloro-5-nitrobenzoyl)thiophene-2-carbohydrazide