MrCummins, a 69-Year-Old Caucasian Male, Presents with an Inability to Move

Mr.Cummins, a 69-year-old Caucasian male, presents with an inability to move his right arm sufficiently.The nurse practitioner tells him that she will perform a physical examination and order tests to rule out which of the following?

A) Gout
B) Rheumatoid arthritis (RA)
C) Muscle weakness from a systemic condition
D) Osteoarthritis (OA)