Me on my last question its urgent class due today

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

What was new about the writing system developed by the phoenicians, and why was this important to the growth of knowledge and spread of ideas?

Answer the questions in the image for brainliest