Given the following inforamtion about treasury bills bought by Marwan: maturity is 13 weeks, face value is $5000 TB yield 3.45%. After 40 Days, Marwan sold the T-bill to Ahmed who wishes to yield 3.10%.What rate of return did Marwan earn on his Investment? (use exact time) Multiple Choice 6.88% 5.88% O O 3,88%