Final answer:
Systemic lupus erythematosus is the disease that causes connective tissue changes leading to glomerulonephritis.
Step-by-step explanation:
Glomerulonephritis is a disease that causes connective tissue changes and inflammation in the glomeruli of the kidneys. Among the options given, Systemic lupus erythematosus is the disease that most commonly causes glomerulonephritis. In systemic lupus erythematosus (SLE), the immune system mistakenly attacks healthy tissues, including the connective tissue in the kidneys.