Task: Answer the multiple choice question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at 1uM of a drug with the SMILES C=CCNc1ncnc2c1[nH]c1ccccc12?
Constraint: You must return none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] 2.981
[b] 1.717
[c] 12.544
[d] -0.852
[e] 12.372
Answer: a. 2.981\%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_1uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_1uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_1uM#}{herg_central_at_1uM__units}.
C=CCNc1ncnc2c1[nH]c1ccccc12
C=CCNc1ncnc2c1[nH]c1ccccc12
N-prop-2-enyl-5H-pyrimido[5,4-b]indol-4-amine