What is one thing that all companies competing in the e$-$commerce arena have in common?

Multiple Choice

All e$-$commerce companies must own an inventory of products.

Both all e$-$commerce companies must own an inventory of products and all e$-$commerce companies must manage the logistical aspects of delivering purchased products to buyers.

All e$-$commerce companies must manage the logistical aspects of delivering purchased products to buyers.

All e$-$commerce companies create a forum for bringing buyers and sellers together.