Kanni Products is a start$-$up computer software development firm. It currently owns computer equipment worth $$30,000$ and has cash on hand of $$20,000$ contributed by Lanni's owners. For each of the following transactions, identify the real and$/$or financial assets that trade hands. Are any financial assets created or destroyed in the transaction?

a$.$ Lanni takes out a bank loan. It receives $$50,000$ in cash and signs a note promising to pay back the loan over $3$ years.

b$.$ Lanni uses the cash from the bank plus $$20,000$ of its own funds to finance the development of new financial planning software.

c$.$ Lanni sells the software product to Microsoft, which will market it to the public under the Microsoft name. Lanni accepts payment in the form of $500$ shares of Microsoft stock.

d$.$ Lanni sells the shares of stock for $$280$ per share and uses part of the proceeds to pay off the bank loan.