Fluidity

The correct answer is option 'B' - Fluidity.

Connective Tissue
- Connective tissue is one of the four main types of tissues found in the human body. It is responsible for connecting, supporting, and protecting various organs and structures.
- Connective tissues are characterized by having cells dispersed in a matrix, which consists of fibers and ground substance.
- Blood is considered a connective tissue because it has cells suspended in a fluid matrix called plasma.

Characteristics of Blood
- Blood is a vital fluid that circulates throughout the body, supplying oxygen, nutrients, hormones, and removing waste products.
- It is composed of various components, including red blood cells (erythrocytes), white blood cells (leukocytes), platelets (thrombocytes), and plasma.
- The fluidity of blood allows it to flow smoothly through blood vessels, reaching all parts of the body.

Function of Blood
- Blood performs a range of essential functions, including transportation, regulation, and protection.
- It carries oxygen from the lungs to the body's tissues and carbon dioxide from the tissues to the lungs for elimination.
- Blood transports nutrients, such as glucose and amino acids, to various cells and removes waste products, such as urea and lactic acid.
- It carries hormones from their production sites to target tissues, allowing for communication and regulation within the body.
- Blood plays a crucial role in maintaining homeostasis by regulating body temperature, pH balance, and water content.
- It also contains immune cells that help defend the body against pathogens and foreign substances, thereby providing protection.

Conclusion
In conclusion, blood is considered a connective tissue due to its fluid nature. This fluidity allows it to perform its vital functions of transportation, regulation, and protection throughout the body.