Answer:
A. set_union
Explanation:
The algorithm set_union is used to find the elements in one range of elements that do not appear in another range of elements.
Answer:
B. deep organizational structure
Explanation:
A website with a deep organizational structure is a positive attribute that improves site performance.
Answer: Servlet
Explanation: JSP page compilation is the process of compiling of the file before it can be turned towards the live server .There is a request that is made towards the JSP page then is compiled into a JSP servlet. Before the execution of the JSP program, it is turned in to a JSP servlet .JSP is a program that work on the server side and reduce the work load of the developers.
Answer:

Explanation:
The statements are logically equivalent if they have the same truth tables. So let´s use truth tables in order to determine if they are logically equivalent or not:
The picture that I attached you shows the truth table for each case. As you can see in the highlight columns:

They are logically equivalent because they have exactly the same truth values between each other. Hence, we can conclude that they are logically equivalent.