You Are Assisting the Physician with the Assessment of a Patient

You are assisting the physician with the assessment of a patient that is thought to have ALS. What clinical cues should you be most aware of?
1) Sialorrhea
2) Muscle biopsy results
3) Tongue fasciculations
4) Nerve conduction study results

A) 1, 3
B) 1, 2, 4
C) 2, 3, 4
D) 1, 2, 3