The lowest requirement that allows a police officer to legally arrest a suspect is

 The correct answer is : It's called a Presence Requirement. For the arrest to be valid, the misdemeanor must occur in the presence of an officer.

Explanation:  An arrest occurs when a police officer takes a person into custody or the person is deprived of liberty for having committed a criminal offense. The officer can make the arrest when: he has personally observed the crime, when he has probable cause that makes him believe that the arrested person committed a crime and when the officer has an arrest warrant issued by a judge.

i believe the answer is d.

the group i'm selecting: greeks.

a first group of greek immigrants came to the us in the 1850s. the second group came to america starting in the 1890s due to economic opportunities they didn't have back in their home caused by the hardships of ottoman rule. greek immigration was 90% male, many of them expected to work and return to greece after earning enough capital, but ultimately had to remain in the us after the greek genocide.