Exhibit 15.1 The Following Questions Employ the AON Network and Partial Spreadsheet

question 23

Multiple Choice

Exhibit 15.1
The following questions employ the AON network and partial spreadsheet below.
-Slack represents the amount of time by which an activity can be delayed without delaying the entire project, assuming that

• A) all successor activities start at their earliest start times.
• B) all predecessor activities start at their earliest start times.
• C) immediate predecessor activities start at their earliest start times.
• D) all predecessor activities start at their latest start times.

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Definitions:

Arteries

Arteries are the vessels responsible for transporting blood enriched with oxygen from the heart to the rest of the body.

Capillaries

The smallest blood vessels in the body, which facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and surrounding tissues.

Aorta

The largest artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen, distributing oxygen-rich blood to all parts of the body.

Sphygmomanometer

A device used to measure blood pressure, consisting of an inflatable cuff to restrict blood flow, and a mercury or aneroid manometer to measure the pressure.