Which of the following statements best describes the straining ability of a fine mesh metal lube oil strainer?

Correct Answer: Option B — A 200 wire mesh screen will prevent passage of smaller particles than a 100 wire mesh screen.

Mesh count refers to the number of openings per linear inch. A 200-mesh screen has more wires and smaller apertures than a 100-mesh screen. Therefore, a 200-mesh screen provides finer filtration, effectively preventing the passage of smaller particles that would otherwise pass through the larger openings of a 100-mesh screen.