What Is the Primary Difference Between Primary Nephritic Syndrome and Secondary

What is the primary difference between primary nephritic syndrome and secondary nephritic syndrome?

A) primary nephritic syndrome is an acute condition while secondary nephritic syndrome is a chronic condition
B) primary nephritic syndrome is a noninflammatory condition of the kidneys, while secondary nephritic syndrome is inflammatory
C) primary nephritic syndrome is limited to the kidney while secondary nephritic syndrome affects the kidney and other parts of the body
D) primary nephritic syndrome is an acute condition affecting the renal tubes, while secondary nephritic syndrome is a degenerative disease of the renal tubules