Did You Know the ABC?

Logic Level 1

Three friends, Anna, Carla and Beth chose the letters A, B and C at random. The girl who chose C always lie, and the other two always tell the truth.

And Anna said:

"I chose B."

Then one of them who chose A said (can be anyone of them, even if she has already spoken):

"I'm not Beth."

And finally Beth said:

"Carla chose B."

Who chose C?