Explanation:

Let's solve this step by step to determine the correct answer:

- Tank Volume Calculation:

- The tank is a rectangular parallelepiped with a height of 1.1 m and a square base of side 2 m.

- Volume of the tank = base area × height = (2 m × 2 m) × 1.1 m = 4.4 cubic meters.

- Pipe Volume Requirement:

- The pipe has a radius of 1 cm, which is 0.01 meters.

- Cross-sectional area of the pipe = (pi) r² = (22/7) × (0.01 m)² = 22/70,000 square meters.

- Pipe Length Calculation:

- Volume needed in the pipe = Volume of the tank = 4.4 cubic meters.

- Let L be the required length of the pipe.

- Volume of water = Cross-sectional area × Length of the pipe.

- 4.4 = (22/70,000) × L.

- Solving for L gives L = (4.4 × 70,000) / 22 = 14,000 meters = 14 km.

- Correct Answer: Option 3 - 14 km