Which statement differentiates soldering from laser welding in metal framework fabrication?

Which statement differentiates soldering from laser welding in metal framework fabrication?

• A. Soldering uses a filler metal to join parts; laser welding fuses parts directly.
• B. Soldering fuses parts directly and laser welding uses filler metal.
• C. Both methods require filler metal.
• D. Laser welding results in more distortion than soldering.

Answer: (A)