Explanation:
See the second sentence of the passage.
Explanation:
The last sentence implies that some argumentation tactics are not honest.
Explanation:
The second sentence points out that goals and needs should be established before a company purchases a new technology such as videoconferencing.
Explanation:
See the final sentence.
Explanation:
The first sentence points to the need for planning a business letter.
Explanation:
The last sentence offers direct support for this response.
Explanation:
This idea is stated in the second sentence and is discussed throughout the passage.