39. A pencil or pen, daily planner, cell phone and calendar are all tools to help you communicate impress others improve decision making manage your time

## Step 1<br />The problem presents a list of items: a pencil or pen, a daily planner, a cell phone, and a calendar. These items are all tools that can be used to assist in various tasks.<br />## Step 2<br />The options provided are: communicate, impress others, improve decision making, and manage your time. We need to determine which of these options best describes the primary use of these items.<br />## Step 3<br />The items listed are primarily used for organizing and managing tasks and schedules. They are not primarily used for communication, impressing others, or improving decision making.<br />## Step 4<br />Therefore, the most appropriate answer is "manage your time".