$($Compulsory$)$ Why is the BCG Matrix called a portfolio matrix? What purpose does this matrix serve? From the data given below you are required to construct a BCG Matrix for Big Ben Ltd and provide a brief overview of the matrix's depictions.

Big Ben Ltd is the name given to the conglomerate operated by Benjamin Willis across Clarendon, Jamaica. Today, Big Ben owns a pharmacy, a fast food outlet, a hardware store, and a supermarket. Outlined below are some data derived from last year's annual report from Big Ben Ltd:

Big Ben Pharmacy $-$ raked in $$1\mathrm{.}5$B in revenues and $$290$M in net profits. The pharmacy industry is doing well and registered growth of $4\%$ over the past three years. Big Ben Pharmacy holds roughly $15\%$ shares in the industry across Clarendon.

Fresh and Fast, his fast food outlet, made $$375M$ in revenue and $$56M$ in net profit. Benjamin claims that the fast food business is almost saturated and is growing only minimally, and his outlet holds less than $5\%$ of market share parish wide.

Big Ben Hardware, from its three branches throughout the parish, brought in $$2\mathrm{.}4B$ in revenue and $$405M$ in net profit. The hardware industry is reportedly growing but rather slowly, and Big Ben controls $20\%$ of the market in Clarendon.

Big Buy Supermarket has four outlets in Clarendon and saw revenues of $$1\mathrm{.}8B$ and net profits of $$340M$ for the last financial year. The supermarket industry is reportedly growing at approximately $5\%$ annually and Big Buy holds about $10\%$ of the market share in the parish.