Which of the following components prevent(s) objects smaller than 1/4 inch from entering the engine?

Correct Answer: Option B — FOD screens

Foreign Object Damage (FOD) screens are installed at the engine inlet to prevent debris larger than 1/4 inch from entering the compressor. These screens are vital for protecting the delicate compressor blades from impact damage, which could lead to blade failure, loss of efficiency, or catastrophic engine damage during high-speed operation.