An athlete reports to the athletic trainer complaining of arm pain. The examination of the athlete reveals:

Moderate sensory impairment in the C-8 to T-1 distribution.
Edema.
Decreased radial pulse in the painful arm.
Paresthesia distributed medially in the arm that sometimes extends into the adjacent anterior chest.
What condition could be indicated by these symptoms?
a) Thoracic outlet syndrome
b) Cubital tunnel syndrome
c) Brachial plexus injury
d) Radial nerve entrapment