Final answer:
The procedure using high-frequency electric current to destroy tissue is known as Electrocautery, which is different from cryotherapy, electrolysis, and laser therapy, and utilizes a sharp edge and high-frequency AC for precision.
Step-by-step explanation:
The procedure that destroys tissue using a high-frequency electric current is known as C) Electrocautery. Other options such as cryotherapy, electrolysis, and laser therapy use different mechanisms for tissue interaction. Electrocautery uses electric current to heat a metal wire, which in turn burns or coagulates tissue, primarily to stop bleeding during surgery or to remove undesired tissues. The electric current flows mostly from the sharp edge of a scalpel due to the nature of electric fields, which concentrate at points with smaller radii, making sharp edges ideal for targeted tissue cutting. High-frequency AC is often used in these procedures to maximize the cutting effect and minimize heat dispersion, which could damage adjacent tissues.