Which difficulties did builders of the transcontinental railroad find ways to overcome?
choose all answers that are correct.
natural barriers such as mountains, rivers, and forests
lack of money invested by businesses and the government
a need for workers
providing supplies to build the tracks and support the workers.
i need some friends

The correct answers are going to be i believe A and C

Explanation:

Can i please have brainiest.

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.