Americans tend to look at others above the neck or below the knees. looking at other parts of a person’s body is considered impolite, while looking at anyone for more than three to five seconds can be interpreted as staring.
a. true
b. false

higher level career administrators within the federal merit system.

Explanation:

The Senior Executive Service is a high level service in the federal government. This position classification in the United States federal government is a position which is equivalent to flag officer ranks or general officer ranks in the U.S. Armed Forces.

The SES or the Senior Executive Service consists of the consists of the higher level career administrators from the civil service within the federal merit system.

Thus the answer is

"higher level career administrators within the federal merit system".