**Bricks**

Bricks are obtained after baking the slabs made of mud in a furnace. When mud is shaped into slabs, it is called raw bricks. These raw bricks are then fired or baked in a furnace to obtain the final product, which is the hardened and durable bricks that we commonly see being used in construction.

**The Process of Making Bricks:**

1. **Preparation of Mud:** The first step in making bricks is the preparation of the mud. The mud is usually a mixture of clay, sand, and other additives like lime or fly ash. This mixture is thoroughly mixed to ensure a uniform composition.

2. **Shaping the Bricks:** Once the mud is prepared, it is shaped into slabs or rectangular blocks using molds. These slabs are the raw bricks and are still in their soft and wet form.

3. **Drying:** After shaping the bricks, they are left to dry in the sun for a certain period of time. This allows the excess moisture in the bricks to evaporate and the bricks to become firm and solid.

4. **Firing in a Furnace:** The dried bricks are then placed in a furnace or kiln for firing. The furnace is heated to high temperatures, typically around 1000-1200 degrees Celsius. This firing process helps to harden the bricks and make them strong and durable.

5. **Cooling and Stacking:** Once the bricks are fired, they are left to cool down in the furnace. After cooling, the bricks are removed from the furnace and stacked in a proper manner for storage or transportation.

6. **Quality Control:** Before being used in construction, the bricks are subjected to quality control tests to ensure their strength, size, and durability. These tests help in determining the suitability of the bricks for various construction purposes.

**Conclusion:**

In conclusion, the correct answer is option A) Bricks. Bricks are obtained after baking the slabs made of mud in a furnace. The process of making bricks involves shaping the mud into slabs, drying them, firing them in a furnace, and finally cooling and stacking them. Bricks are widely used in construction due to their strength, durability, and thermal properties.

Bricks is obtained after baking the slabs made ofmud furance