Marketers often develop multiple products. For example, Apple's MacBook Pro has several different product levels at prices ranging from around $$1,000$ to more than $$2000.$ At each increasing "price step" the offering includes greater processor speed, a larger display, and more memory. This type of product mix pricing strategy is referred to as $\_\_\_\_\_\_\_\_?$

Group of answer choices

Bundled product pricing

By$-$product pricing

High$-$end pricing

Product line pricing