Today you bought (long) a Eurodollar futures contract (contract size: $1 million) at 96.54. Two days later you sold the contract at 96.74. As a result

a.) you received $500 in cash and paid $1 million to the buyer.

b.) you paid $500 in cash and received $1 million from the buyer.

c.) you received $500 in cash and closed your position on the futures contract.

d.) you paid $500 in cash and closed your position on the futures contract.