*1.Q1. Which ONE of the following statements is CORRECT in regards to chronic kidney disease (CKD)?(Required.)

A. CKD is referred to as loss of kidney function lasting for one month or more.

B. CKD is broadly categorised into seven stages based on glomerular filtration rate. 

C. CKD is regarded as a major public health problem worldwide. 

D. Presence of one marker of kidney damage for three months or more is not suggestive of CKD.