CPU (Central Processing Unit) is also known as the brain of the computer because this is the place which actually runs the programs. The programs are the set of instructions needed to perform a task.
I would suggest the answer would be both A and D, mail merge is used to specify different field for different recipients.
Answer:
d) Improper documentation
Explanation:
A flowchart is a type of diagram in which it presents the flow of the work or how the process is to be followed. It is a diagram that represents an algorithm that defines step by step approach to solving the task. In this, there are various boxes that are linked with the arrows
There are various advantages like in this, there is a better communication, coding is to be done in an efficient way, system could be tested also there is a proper documentation
hence, the correct option is d