Please Help with this computer Science encryption question. I finished it, but I'd like to confirm my answers are correct. I believe their is a typo, and CBS is supposed to be CBC. Thanks!

Problem: Multiple block encryption (ECB:20 pts, CBS:40pts, CTR:40pts) Given the following message and a block size of 2 bits, encode it using ECB, CBC, and CTR O(make sure to indicate which is which)