3. A common type of inflation is (select all that apply)

common type of inflation is:1. Demand-pull inflation: This occurs when the demand for goods and services exceeds their supply, leading to an increase in prices.2. Cost-push inflation: This happens when the cost of production inputs, such as raw materials or labor, increases, causing producers to raise prices to maintain their profit margins.3. Built-in inflation: Also known as wage-price inflation, this type of inflation occurs when businesses increase prices to compensate for rising labor costs, and workers demand higher wages to keep up with rising living costs.4. Inflation caused by external factors: This can include inflation resulting from changes in exchange rates, fluctuations in global commodity prices, or supply chain disruptions.Therefore, all of the above options are common types of inflation.