What is the circle of data storage area on a disk called...? Mcqs

What is the circle of data storage area on a disk called...?

(A) Sector

(B) Plates

(C) Cylinder

(D) Track

Explanation:

Disk Storage Parts 

Platter: The circular, rigid magnetic plate that actually holds the recorded data.
Track: The complete concentric ring or circle on the platter surface where data is stored.
Sector: The small pie-shaped wedge or subdivision of a track, usually holding 512 bytes or 4KB of data as the smallest physical storage unit.
Cylinder: A vertical stack of matching tracks located at the exact same radius across all stacked platters in a drive.

Source: This question is taken from the Junior Clerk (BS-11) Board of Revenue PPSC Past Paper