Neptune Corporation has purchased land for $$100,000.$ It financed $50\%$ of the cost using long$-$term debt and used cash for the other $50\%.$ The effect on its balance sheet is

a$.$ a decrease in assets of $$50,000$ and a decrease in owners' equity of $$50,000.$

b$.$ an increase in assets of $$100,000$ and a decrease in owners' equity of $$100,000.$

c$.$ an increase in assets of $$100,000$ and an increase in liabilities of $$50,000.$

d$.$ an increase in assets of $$50,000$ and an increase in liabilities of $$50,000.$