$2)$ What is the most important difference between these two companies at the same time?:Group of answer choicesa$)$ Wal$-$Mart has too many supermarkets $($super stores$)$ meanwhile Amazon relies more on independent suppliers $($even though Amazon has as well Food Markets$)$c$)$ Amazon sell more on stores than Wal$-$Martd$)$ Amazon decreasing Food Markets.b$)$ Wal$-$Mart has a few supermarkets $($super stores$)$ meanwhile Amazon relies on a few independent suppliers $($despites Amazon has as well Food Markets$)$