A. A clean installation.
A clean installation erases all the information on the drive and installs a fresh, new OS right off the boot device.
The answer & explanation for this question is given in the attachment below.
You have to add it and then there should be a layout button and you have to press that button
Answer:
Communication path basically define the path in which the information and messages can be exchange by using the efficient communication path.
There are simple formula for calculating the total number of communication channel that is :

Where, n is the number of stack holder.
Now, the maximum number of communication paths for a team of twenty people can be calculated as:
n=20
=\frac{20(20-1)}{2} = 190
Therefore, 190 is the total number of communication path.
Answer:
Certain country in the Caribbean Sea recently held an election to choose its president. Every vote cast was electronic, but unfortunately, a recent power surge caused a malfunction in the system just before votes were counted. The only information saved consists of the following facts:
Explanation:
• All the N citizens casted their vote.
• Exactly one candidate received more than N/2 votes.
• We don’t know how many candidates there were.
You are hired to help using your expertise in algorithms.