Task: Answer the multiple choice question.
Question: Which drug exhibits a 21.343\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. CCCN1C(=O)c2cc(C(=O)Nc3ccccc3OC)ccc2C1Nc1ccccc1OC
b. CCOc1ccccc1NC(=O)CSCC(=O)Nc1ccccc1
c. NNC(=O)c1[nH]c(-c2ccccc2)cc1-c1ccccc1
Answer: c. NNC(=O)c1[nH]c(-c2ccccc2)cc1-c1ccccc1
{#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#}
NNC(=O)c1[nH]c(-c2ccccc2)cc1-c1ccccc1
NNC(=O)c1[nH]c(-c2ccccc2)cc1-c1ccccc1
3,5-diphenyl-1H-pyrrole-2-carbohydrazide