Read the following paragraph and respond to the questions below. (1) Frequently, department managers and supervisors recruit applicants without working through our corporate human-resources office. (2) Our human-resources departments at all of our locations across the country have experienced this problem. (3) Recently, the manager of our tool-design department met with a recent industrial design graduate to discuss an opening for a tool designer. (4) The graduate was sent to the human-resources department, where she was told that no such position existed. (5) When the tool-design manager asked the director of human resources about the matter, the manager learned that the company president had ordered a hiring freeze for two months. (6) I’m sure that our general employment situation will get better. (7) As a result of the manager’s failure to work through proper channels, the applicant was not only disappointed but bitter.
a. Which number sentence is the topic sentence?
b. Which number sentence does not contribute to paragraph unity?
c. What is the writer providing in sentences 3 through 7 to help the reader understand his/her point?
d. Why is that helpful, or why is the message better by adding sentences 3 through 7?

a. The number sentence that is the topic sentence is sentence (1).

b. Sentence (6) does not contribute to the paragraph's unity.  It can be eliminated, without changing the meaning that can be obtained from the paragraph.  It does not support the topic.

c. The writer, in sentences 3 through 7, provides an example and further details to help the reader to understand her point.

d. The example in a sentence makes the idea clearer to the reader.  Without the example, which provides further details, the reader may not clearly appreciate the topic under discussion.

Explanation:

The purpose of the topic sentence is to introduce the theme of the paragraph or the point of view of the writer.  It captures the essence of the story.  As it bears the central idea, it focuses the paragraph to achieve unity.

the correct answer is:

it required the president to inform congress within forty-eight hours of any new troop commitment.

the war powers resolution (1973) is a federal law designed to limit the u.s. president’s ability to initiate or intensify military actions abroad without the approval of the congress.

it establishes that the president can send armed forces into action abroad only by declaration of war by congress, statutory authorization, or in case of a national emergency created by attack upon the united states, its territories or possessions, or its armed forces.

it requires the president to notify congress within 48 hours of sending armed forces to military action.