A high power view of an arterial wall is shown in the accompanying photomicrograph.In the portion of the field labelled "C",which one of the following is responsible for the elongated,empty spaces seen? 
Definitions:
Market Share
The portion of a market controlled by a particular company, often expressed as a percentage of total sales in that market.
Patentable Technologies
Innovations or inventions that meet specific criteria for novelty, non-obviousness, and utility, thus eligible for patent protection.
Market Extension Merger
A merger between companies in different markets that sell similar products or services, aiming to expand their market reach.
Grocery Chain
A series of retail grocery stores, often owned and operated by a single company, providing a range of food and household products.
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