Patients with suspected scaphoid fractures should be evaluated further with either immediate ___ , ___ , or ___ .
a) Ultrasound, PET scan, and echocardiogram
b) Blood tests, physical therapy, and chiropractic adjustment
c) MRI or CT, repeat x-ray in 7-10 days, bone scan in 3-5 days
d) Electrocardiogram, spirometry, and lumbar puncture