Task: Answer the MCQ question.
Question: What is the hERG inhibition at a concentration of 1uM of a drug with the SMILES CCn1c(-c2cccnc2Cl)nc2cc(C)c(C)cc21?
Constraint: You must return none, one or more options from a or b without using any additional words.
Options:
a -2.868
b 5.889
Answer: a. -2.868\%.
{#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}.
CCn1c(-c2cccnc2Cl)nc2cc(C)c(C)cc21
CCn1c(-c2cccnc2Cl)nc2cc(C)c(C)cc21
2-(2-chloropyridin-3-yl)-1-ethyl-5,6-dimethylbenzimidazole