Which of the following statements is/are true about quinary activities?

All of the above

The highest level of decision makers or policymakers perform quinary activities. These are subtly different from the knowledge based industries that the quinary sector in general deals with. Quinary activities are services that focus on the creation, re-arrangement and interpretation of new and existing ideas; data interpretation and the use and evaluation of new technologies. Often referred to as ‘gold collar’ professions, they represent another subdivision of the tertiary sector representing special and highly paid skills of senior business executives, government officials, research scientists, financial and legal consultants, etc. Their importance in the structure of advanced economies far outweighs their numbers.