This question belongs to scratch programming. This programming language has various instructions to carry out various tasks. There are different types of repeat statement available. This statement or instruction allows the user / programmer to repeat certain line of statements to a number of times. Here, according to the question, we need to use “Repeat after me”
If you take a music note, the tempo, timing and pitch needs to be mentioned clearly and “:” represents that a particular note to be repeated only once.
 
        
             
        
        
        
Put some more of your time to help improve that skill.try to learn to get better.
        
             
        
        
        
#include <stdio.h> //stdio stands for STanDard Input/Output 
 
        
             
        
        
        
The answer is : Ergonomics
.   It is about ensuring that the work system is favorable to good performance and work effectiveness and consequently,  that the work environment is compatible with the health, safety and comfort of the worker.  It reduces hazards in the working environment.