Tyler Maintains a Calendar in Which He Notes Various Tasks

Multiple Choice

Tyler maintains a calendar in which he notes various tasks he is required to perform in the future and when they are due.He also keeps information about callbacks he is supposed to make.In addition,he has information about many of his customer's birthdays (so he can send a card) .This calendar helps him prepare his to-do lists to get things done in a timely manner.Which of the following terms best describes this calendar?

A) Duty box
B) Engagement file
C) Activity index
D) Organizer box
E) Tickler file