Match the following vitamins with their deficiency diseases.

S.No.	Vitamins	Deficiency diseases
1.	Vitamin $A$	Beri beri
2.	Vitamin $B_1$	Scurvy
3.	Vitamin $C$	Rickets
4.	Vitamin $D$	Nyctalopia

1. Vitamin A is also called as retinol. The deficiency of this vitamin results in loss of eyesight or night blindness. Nyctalopia is the term used to refer night blindness.

2. Vitamin B${}_1$ is called as thiamine. The deficiency of this vitamin results in beriberi. Beriberi affects the nervous and the circulatory system.

3. Vitamin C is called as ascorbic acid. The deficiency of this vitamin causes scurvy. Scurvy is characterised by bleeding gums, rash, fatigue and weakness.

4. Vitamin D deficiency results in rickets. There is bending of the long bones. Due to deficiency, the bones become brittle and fractures or breaking of the bones also observed.