All the Following Are Reasons to Avoid a Chiropractor Except

All the following are reasons to avoid a chiropractor except

A) statements that spinal adjustments are needed weekly or monthly to prevent health problems.
B) advertising claims that various common symptoms indicate a need for chiropractic care.
C) a recommendation for spinal manipulation for low-back pain.
D) an offer of a discount for advance payment for a lengthy series of spinal adjustments.
E) marketing of vitamin products to patients.