How Does Listing Existing Shares of an MNC on Multiple

How does listing existing shares of an MNC on multiple markets assist the MNC in raising capital?

A) Listing existing stock on multiple markets does not assist the MNC in raising capital because existing funds have already been sold by the MNC.
B) Listing existing stock on multiple markets makes that stock available to more investors.
C) Listing existing stock on multiple markets means that the MNC's stock is more desirable.
D) Listing existing stock on multiple markets does not provide new financing for the MNC but does expand the potential buyers of later issues of new stock.