Which of the Following Statements Is Correct in Regards to Differences

Multiple Choice

Which of the following statements is correct in regards to differences between phonophoresis and iontophoresis?

A) Iontophoresis has the capability of greater penetration.
B) Phonophoresis has a greater chance of producing a chemical burn.
C) Iontophoresis has a greater advantage because it allows the medicine to bypass the gastrointestinal system.
D) Phonophoresis involves driving whole molecules across the skin into the tissues.
E) Iontophoresis is more economical.