Task: Answer the MCQ question.
Question: What is the human ether-à-go-go related gene (hERG) inhibition at 1uM of a drug with the SMILES CC(=O)N1CCC2(CC1)C(C#N)=C(N)Oc1c2sc2nc(C)cc(C)c12?
Constraint: You must return none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] 2.241
[b] 15.807
[c] 3.081
[d] -10.113
Answer: a. 2.241\%.
{#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}.
CC(=O)N1CCC2(CC1)C(C#N)=C(N)Oc1c2sc2nc(C)cc(C)c12
CC(=O)N1CCC2(CC1)C(C#N)=C(N)Oc1c2sc2nc(C)cc(C)c12
1'-acetyl-4-amino-11,13-dimethylspiro[3-oxa-8-thia-10-azatricyclo[7.4.0.02,7]trideca-1(9),2(7),4,10,12-pentaene-6,4'-piperidine]-5-carbonitrile