Stellar mobiles was a popular mobile phone brand. however, when its competitors began switching to smartphones, stellar realized that it too needed to change in order to survive in the market, and it quickly started developing smartphones. in other words, stellar mobiles entered the stage of the technology cycle. a. change substitution b. discontinuous change c. decline d. technological entropy e. the technological maturity stage

b. discontinuous change.

It is the stage of a technology cycle that characterized by the following:

1. Technological substitution. It occurs when customers purchase new technologies to replace older technologies.

2. Design competition. Occurs when an old technology and several different new technologies fight to establish a new technological standard or dominant design.

answer; /// i believe that the correct answer is (b) money set aside for emergency repairs;

i'm pretty sure the answer is 60.