With regard to the overall life of a lamp, the best lighting option for the...

High-pressure sodium (HPS) lamps are ideal for parking lots and large outdoor areas because they offer long service life, energy efficiency, and good visibility, even in adverse weather. Their slightly yellowish hue is acceptable for general surveillance and area illumination.

A (Metal halide) has better color rendering but shorter life.

B (Low-pressure sodium) has poor color rendering.

C (Halogen) is less efficient and has a shorter lifespan.