Concept:
Polar-orbiting satellites pass close to both the North and South Poles, allowing complete coverage of the Earth's surface over successive orbits.
They are widely used for Earth observation and resource mapping.
Step 1: Understand polar orbits.
Polar satellites
• Provide global coverage.
• Offer high spatial resolution.
• Are widely used for mapping and remote sensing.
Step 2: Choose the most suitable platform.
Hence,
\[
\boxed{\text{Polar orbit is best suited for global mapping and Earth resource surveys}.}
\]
Therefore, the correct option is
\[
\boxed{(A)\;\text{Polar orbit}.}
\]