The value of the border-color property can be either a hexadecimal value, one of the predefined color names, or which of the following?

________ track loan payments over the life of a loan

Fill in the blank(s) with the appropriate word(s).

When processing a queue:

a. An error occurs when adding data to the queue and the queue is filled. b. An error occurs when deleting data from the queue and queue is empty. c. An error occurs when the wrong option is entered. d. All of the above.