An investor purchased 10,000 shares of ABC corporation for $100 per share. They borrowed from their broker up to the maximum, 50% initial margin. they paid interest on the margin loan af 10 annually, compounded using simple interest. After 6 months, they sold the stock for $95. What is the rate of return on their invested capital?

a. +5.00%

b.-7.50%

O C. +10.00%

O d.-5.00%

e. +7.50%

O f. +15.00%

O g.-15.00%

h.-10.00%