Who were the "big three" at the yalta conference in 1945

i think option 3. would be ur best bet and u need to write it urself

have a good day

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.