Margaret Is at a Friend's House, Toasting Their Graduation from High

Margaret is at a friend's house, toasting their graduation from high school. Margaret is getting tipsy and tired and decides to go home. Margaret's friend protests and asks her to stay the night, but Margaret is adamant and leaves. Margaret weaves into the oncoming lane, forcing the car in the opposite lane to run into the ditch. The police stop Margaret after witnessing the incident.

A) The police notice nystagmus in Margaret's eyes, smell alcohol on her breath and decide to administer a(n) : ​
B) drug test.
C) water logged test.
D) urinalysis test.
E) field sobriety test.