The capacity of a 3.5-Inch floppy disk is:

Explanation:

The standard and most common capacity for a high-density 3.5-inch floppy disk is $1.44 \text{ MB}$. While earlier versions had lower capacities, $1.44 \text{ MB}$ became the prevalent standard for these disks. Options (a), (c), and (d) represent incorrect capacities for this specific type of floppy disk. Therefore, (b) is the correct answer.