A portfolio weight is defined as the:

a. total number of shares in a particular asset divided by the total number of shares held in a portfolio

b. total market value of a portfolio divided by the total book value of that portfolio

c. total current market value of an entire portfolio of diversified holdings

d. current value of a portfolio minus the value one year ago, divided by the value one year ago

e. percentage of a portfolio's total value that is invested in a particular asset