Which command should be added to /etc/bash_profile to change the language of messages from an internationalised program to Portuguese (pt)?

Which command should be added to /etc/bash_profile to change the language of messages from an internationalised program to Portuguese (pt)? (Select TWO correct answers)

A.
export ALL_MESSAGES=upt"

B.
export MESSAGE="pt"

C.
export LC_MESSAGES="pt"

D.
export LANG="pt"

E.
export LANGUAGEs,lpt"