Explanation:

- Workforce population usually refers to the age group considered capable and eligible for employment in a given economy.

- Different organizations and regions may define the workforce age range differently based on their specific needs, policies, and labor laws.

- Option 1: 20 to 54

- Generally covers prime working age, excluding teenagers, and those transitioning out of work.

- Option 2: 15 to 59

- ?? Covers individuals from early working age to near retirement, as per international labor standards.

- Option 3: 18 to 45

- Focuses on a narrower age range, typically considered for more active or demanding roles.

- Option 4: 17 to 55

- Strikes a balance between adolescence and pre-retirement, covering a broad working scope.