Sarah has $200,000 in her checking account. Sarah's bank puts $100,000 of it into reserves, and lends the remaining $100,000 to John. John uses the funds to buy a house from Peter, who takes the $100,000 he earned in the sale and puts it in his savings account. John's bank puts $98,000 of these funds into reserves, and uses the remaining $2,000 to make a new loan to Olga. Olga takes this loan in cash since she is about to go on a road trip. Based on the information provided, what is the money supply (M2) in this economy