Final answer:
Arab immigrants began coming to the US in the late 19th and early 20th centuries. Immigration from Arab countries has been steady since 1960, with immigrants from this time period being more likely to be Muslim and highly educated. The option (3) is correct.
Step-by-step explanation:
The first Arab immigrants came to the United States in the late nineteenth and early twentieth centuries, mainly from Syria, Lebanon, and Jordan. They were predominantly Christians and came to escape persecution and seek better opportunities.
These early immigrants and their descendants make up a significant portion of the Arab American population today. However, Arab immigration to the US has been steady since 1960, with immigrants from this time period being more likely to be Muslim and highly educated. Therefore, option (3) is correct.