Task: Answer the MCQ question.
Question: Which drug exhibits a -20.349% 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. O=C(CC1C(=O)NCCN1CC1CCCCC1)NCc1ccc(Cl)cc1
b. CC(CCC(=O)O)(c1ccc(O)cc1)c1ccc(O)cc1
c. CCOC(=O)CSc1nnc(-c2ccc([N+](=O)[O-])cc2)o1
Answer: a. O=C(CC1C(=O)NCCN1CC1CCCCC1)NCc1ccc(Cl)cc1
{#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#}
O=C(CC1C(=O)NCCN1CC1CCCCC1)NCc1ccc(Cl)cc1
O=C(CC1C(=O)NCCN1CC1CCCCC1)NCc1ccc(Cl)cc1
N-[(4-chlorophenyl)methyl]-2-[1-(cyclohexylmethyl)-3-oxopiperazin-2-yl]acetamide