Describe$$ Google's sources of financing in the financial markets over the$$ period?$($Select the best choice$$ below.$)$

A$.$Google's main source of financing in the financial markets over the period was the issuance of debt for the amount of $-$$$1,726$ million.

B$.$Google's main source of financing in the financial markets over the period was the issuance of debt for the amount of $ $1,569$ million.

C$.$Google's main source of financing in the financial markets over the period was the issuance of common stock for the amount of $-$$ $1,726$ million.

D$.$Google's main source of financing in the financial markets over the period was the issuance of common stock for the amount of $ $10$ million.