Which major vestibular diagnostic category would you assign to these clients?

Using the following major diagnostic categories (as described by Bhattacharyya, Neil Et Al 2017): Acute Vestibular Syndrome, Triggered Episodic Vestibular Syndrome, Spontanoues Episodic Vestibular Syndrome, or Chronic Vestibular Syndrome, which classification might be most appropriate to assign to the following clients?

A:

B.

C.

D.

Bhattacharyya, Neil, et al. "Clinical Practice Guideline: Benign Paroxysmal Positional Vertigo (Update)." Otolaryngology - Head and Neck Surgery, vol. 156, no. 3_suppl, 2017, pp. S1-S47. OhioLINK Electronic Journal Center, doi:10.1177/0194599816689667.