Which two ways would a developer write an Exclusion Script to exclude sending an email at send time when comparing against a Boolean field in the Sendable Data Extension? Choose 2 answers

Which two ways would a developer write an Exclusion Script to exclude sending an email at send time when comparing against a Boolean field in the Sendable Data Extension? Choose 2 answers
A . %%SendBoo1%%
B. %%SendBoo1 < 1
C. %%=Lookup (‘Excluded’ , SendBoo1′. Subscribekey’. _Subscribekey) =%%
D. %%=Lookup (‘Excluded’ , SendBoo1′. _Subscribekey’. _Subscribekey) =%%

Answer: B,C