You invest $1000 at time t=0 and an additional $5000 at time t=1/2. At time t=1/2 you have $1300 in your account and at time t=1 you have $6100 in your account. Find the dollar-weighted rate of return rd and the time-weighted rate of return rt on this investment. A. rd= 2.87 %, rt= 25.87 % B. rd=1.44 %, rt=12.94 % C. rd=1.64 %, rt=14.78 % D. rd=4.59 %, rt=41.4 % E. rd=0.72 %, rt=6.47 %