When Monitoring the Value of Your Stock Investments,it Is Important

When monitoring the value of your stock investments,it is important to

A) Wait until you sell them to determine their value.
B) Track the prices in the December copy of a financial magazine.
C) Estimate their values based on similar stocks.
D) Determine their values using the Internet or newspapers.
E) Assume that the values remain the same as long as you hold them.