2. Question is the pic ...

Dear Student,
Here is your answer,

The scientific principle identified above is : 

Development of Every Person to his Greatest Efficiency-

The effectiveness of a company also relies on the abilities and skills of its employees. Thus, implementing training, learning best practices and technology, is the scientific approach to brush up the employee skill. To assure that the training is given to the right employee, the right steps should be taken at the time of selection and recruiting candidates based on a scientific selection.

Regards.