Task: Answer the MCQ question.
Question: Which compound exhibits a 30.787% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) Cl.O=c1cc[nH]c2c1ccc1c(=O)cc[nH]c12
(b) CCCc1nnc(NC(=O)C23CC4CC(CC(C4)C2)C3)s1
(c) Cc1ccc2nc(/C(C#N)=C\c3ccc(Oc4ccc([N+](=O)[O-])cn4)cc3)[nH]c2c1
Answer: a. Cl.O=c1cc[nH]c2c1ccc1c(=O)cc[nH]c12
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Cl.O=c1cc[nH]c2c1ccc1c(=O)cc[nH]c12
Cl.O=c1cc[nH]c2c1ccc1c(=O)cc[nH]c12
1,10-dihydro-1,10-phenanthroline-4,7-dione;hydrochloride