When will the speaker talk about the economic and political changes

A. Persons who have salaries according to long-term contracts.
B. Persons who own businesses.
C. Persons with old-age pensions.
D. Persons with slow-rising incomes.

A. has a limited vocabulary
B. is a clean-cut, cheerful and frank guy
C. can’t understand a sophisticated joke
D. is well-built but rather slow-witted