Marze Akhzar or Khizra is recognized in Unani medicine as a type of SooUl Qiniya, which relates to pathological changes in the blood.
This condition is characterized by a greenish or yellowish green tint to the skin, which occurs due to altered blood components.
It is commonly seen in young girls and is often linked to menstrual disorders, which disturb the balance of blood constituents.
Therefore, both Assertion (A) and Reason (R) are correct.
The reason directly explains the assertion because the skin colour change is due to blood changes related to menstrual irregularities.
Hence, option (1) is correct.