ANSWER:
Believing that every problem has a solution is a part of efficiency and practicality.
Step-by-step explanation:
Whenever a problem is faced, it is handled with efficiency and practicality. This means that every problem is taken up to be solved. New solutions to problems are always found so that these can be solved.
A problem is taken up in a practical manner and new methods and technology are always found out so that problems can be fixed.