According to Karl Marx Surplus value can be earned by several ways. Which one of the following is not included in that?

According to Karl Marx Surplus value can be earned by several ways. Which one of the following is not included in that?

A. By reducing the wages rates
B. By increasing working hours
C. By resorting to technological advancement
D. By using labour saving devices
E. By eliminating workers from the market

J.S. Colesman’s name is associated with one of the following about political development:

J.S. Colesman’s name is associated with one of the following about political development:

A. It should be linked with industrialisation
B. It should be linked with level of absolute power
C. It should be linked with political stability
D. It should be linked with bureaucracy
E. It should be linked with legal system