[Solved] "Please explain the pathophysiology of osteoarthritis to me," says another nurse."Is it just wear and tear so that the cartilage wears out?" Your best response is A) "Yes; repeated use just wears out the cartilage, until it becomes thin and denuded. That causes pain and will eventually cause joint inflammation." B) "Yes; with increasing age, the inflammation from repeated joint use accumulates and causes the cartilage to get thin and ragged until it disappears." C) "No; cells in bone, cartilage, and the synovial membrane all get activated and secrete inflammatory mediators that destroy cartilage and damage bone." D) "No; autoimmune cells infiltrate the joint and collect on the cartilage in a mass called 'pannus' that eventually thins and destroys the cartilage." Price Level: A comprehensive average of prices for all goods and services within the economic output. Inflation: The surge in the overall pricing structure for goods and services, undermining the efficiency of spending. Goods and Services: The outputs produced by the economy, where goods are tangible objects and services are intangible offerings that satisfy consumer needs or wants. Real GDP: The measure of a country's economic output adjusted for price changes (inflation or deflation), reflecting the true value of goods and services produced over a specific period.