Task: Answer the MCQ question.
Question: Which drug exhibits a -0.563% 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) COc1ccc(S(=O)(=O)N(CC(=O)NCC2CCCO2)Cc2ccccc2)cc1C
(b) CCOc1ccc(S(=O)(=O)N2CCOCC2)c2ccccc12
(c) Oc1cnn(-c2ccccc2)c1
Answer: c. Oc1cnn(-c2ccccc2)c1
{#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#}
Oc1cnn(-c2ccccc2)c1
Oc1cnn(-c2ccccc2)c1
1-phenylpyrazol-4-ol