Which of the following is a common field sobriety test?

The finger-to-nose test is commonly used in field sobriety testing because it evaluates a person's motor skills, coordination, and ability to follow instructions, which can be impaired by alcohol consumption. During this test, the individual is asked to stand with their feet together and eyes closed, then touch their finger to their nose using a specified hand. This action requires balance, coordination, and dexterity, which are all affected by intoxication.

Other tests listed, such as the blinking test, alcohol breath test, and heart rate test, do not provide the same level of assessment regarding an individual's physical and cognitive abilities in a straightforward manner as the finger-to-nose test. While some of these might be related to assessments in a broader context, they are not standard field sobriety tests utilized by officers in the field.