a. Paid $5,800 cash in advance on Octobet 1 for a one-year insurance policy. b. Received a $4,600 cash advance for a contract to provide services in the future. The contract required a one-year commitment, 5 starting April 1 points c. Purchased $1,700 of supplies on account. At year's end, $225 of supplies rempined on hand. d. Paid $10,800 cash in advance on August 1 for a one-year lease on offlice space